| BAKER HUGHES INCORPORATED Patent applications |
| Patent application number | Title | Published |
|---|
| 20120035851 | NMR-DNA FINGERPRINT - Pulse sequences are applied to a fluid in an earth formation in a static magnetic field and NMR spin echo signals are obtained. The signals are processed to give a distribution of relaxation time at each of the plurality of depths. A quasi-DNA is obtained by autoscaling and a nonlinear mapping of T | 02-09-2012 |
| 20120035309 | METHOD TO DISPERSE NANOPARTICLES INTO ELASTOMER AND ARTICLES PRODUCED THEREFROM - Methods of making elastomeric nanocomposites with improved nanoparticle dispersion in the elastomer are described. The method includes the use of liquid form additives such as oils, plasticizers and/or solvents as dispersing agents to disperse nanoparticles into elastomers. Also described are articles such as downhole elements including the elastomeric nanocomposites made by the methods described herein. | 02-09-2012 |
| 20120034464 | DIAMOND PARTICLES HAVING ORGANIC COMPOUNDS ATTACHED THERETO, COMPOSITIONS THEREOF, AND RELATED METHODS - A substance includes diamond particles having a maximum linear dimension of less than about 1 μm and an organic compound attached to surfaces of the diamond particles. The organic compound may include a surfactant or a polymer. A method of forming a substance includes exposing diamond particles to an organic compound, and exposing the diamond particles in the presence of the organic compound to ultrasonic energy. The diamond particles may have a maximum linear dimension of less than about 1 μm. A composition includes a liquid, a plurality of diamond nanoparticles dispersed within the liquid, and an organic compound attached to surfaces of the diamond nanoparticles. A method includes mixing a plurality of diamond particles with a solution comprising a liquid solvent and an organic compound, and exposing the mixture including the plurality of diamond nanoparticles and the solution to ultrasonic energy. | 02-09-2012 |
| 20120034313 | Microbiocide/Sulfide Control Blends - A chemical blend that simultaneously kills bacteria and suppresses the production of hydrogen sulfide (H | 02-09-2012 |
| 20120033528 | Pipelined Pulse-Echo Scheme for an Acoustic Image Tool for Use Downhole - The present disclosure is related to apparatuses and methods for estimating borehole parameters using a plurality of reflections caused by a plurality of acoustic pulses. The reflections may overlap each other and/or the acoustic pulses. The methods may include estimating an envelope of the received acoustic signal at the at least one element of the array of transducers; and estimating at least one arrival time of at least one of the plurality of overlapping events from the envelope of the received acoustic signals, the arrival times being characteristic of the geometry of the borehole. The method may also include imaging the borehole wall. The apparatus may include an array of transducers on a rotatable transducer assembly with at least one element on the array configured to generate a plurality of acoustic pulses and receive reflections and a processor configured to perform the method. | 02-09-2012 |
| 20120032868 | Remotely Located Tuning Circuits for Multi-Frequency, Multi-Purpose Induction Antennae in Downhole Tools - An antenna system for a downhole tool has an antenna that is configured to operate at a plurality of frequencies. The tuning circuit is on the interior of the tool and shielded from borehole fluids. The tuning circuit is coupled to the antenna by a transformer circuit. | 02-09-2012 |
| 20120032560 | Apparatus and Method for Downhole Energy Conversion - An apparatus for generating electrical energy in downhole tool is disclosed. In one exemplary embodiment, such apparatus includes a tubular configured to flow a fluid within the tubular and an energy conversion device at a selected location inside the tubular, wherein the energy conversion device comprises an active material configured to convert received pressure pulses in the fluid into electrical energy. | 02-09-2012 |
| 20120032543 | OIL COMPOSITION COMPRISING FUNCTIONALIZED NANOPARTICLES - An improved oil composition is disclosed. The oil composition includes a base oil comprising a hydrocarbon, the base oil having a base thermal conductivity. The oil composition also includes a first additive comprising a plurality of derivatized first additive nanoparticles dispersed within the base oil to form a modified oil having a modified thermal conductivity, wherein the modified thermal conductivity is greater than the base thermal conductivity. Alternately, an improved oil composition includes a base oil comprising a hydrocarbon and a first additive comprising a plurality of derivatized first additive nanoparticles dispersed within the base oil to form a modified oil comprising a stabilized suspension of the derivatized first additive nanoparticles in the base oil. | 02-09-2012 |
| 20120031810 | Removing Amines From Hydrocarbon Streams - Corrosive amine salts in hydrocarbon streams such as desalted crude oil streams can be prevented or avoided by adding certain amine scavenging chemicals to the streams to remove the amines therefrom. Suitable amine scavengers include, but are not necessarily limited to, carboxylic anhydrides and copolymers of carboxylic anhydrides, aromatic anhydrides, isocyanates, polyisocyanates, and epoxides. The non-corrosive reaction products of the amines and/or ammonia with these scavengers are preferably oil-soluble, non-basic and thermally stable. The amine scavengers bind up and react with the amines and/or ammonia to keep them from reacting with materials such as acids (e.g. HCl) to form corrosive amine salts. | 02-09-2012 |
| 20120031677 | DIRECTIONAL WELLBORE CONTROL BY PILOT HOLE GUIDANCE - A directional drilling apparatus include a first cutter that substantially cuts a wellbore bottom along a first axis and a second cutter that cuts the wellbore bottom along a second axis different from the first axis. The second cutter may extend an adjustable amount out of the first cutter. In another embodiment, a pilot string may connect the second cutter to the first cutter. | 02-09-2012 |
| 20120031674 | SHAPED CUTTING ELEMENTS FOR EARTH-BORING TOOLS, EARTH-BORING TOOLS INCLUDING SUCH CUTTING ELEMENTS, AND RELATED METHODS - A cutting element for an earth-boring tool. The cutting element comprises a substrate base, and a volume of polycrystalline diamond material on an end of the substrate base. The volume of polycrystalline diamond material comprises a generally conical surface, an apex centered about a longitudinal axis extending through a center of the substrate base, a flat cutting surface extending from a first point at least substantially proximate the apex to a second point on the cutting element more proximate a lateral side surface of the substrate base. Another cutting element is disclosed, as are a method of manufacturing and a method of using such cutting elements. | 02-09-2012 |
| 20120031672 | Apparatus and Methods for Real Time Communication in Drill Strings - A drill pipe made according to one embodiment includes a number of serially connected tubulars with a communication device placed between the connecting ends of the tubulars, wherein the communication device provides a direct data communication link between the adjoining tubulars. | 02-09-2012 |
| 20120031670 | Apparatus and Methods for Real Time Communication Between Drill Bit and Drilling Assembly - An apparatus made according to one embodiment includes a drill bit that has a cavity at an end thereof and a communication device placed in the cavity, wherein the communication device includes a first section and a second section, wherein an outer dimension of the second section is greater than an outer dimension of the first section, and wherein the second section includes a conduit configured to allow passage of a conductor from the drill bit to a location outside the drill bit so as to provide a direct connection of the conductor from the drill bit to an element outside the drill bit. | 02-09-2012 |
| 20120031617 | FORMATION TREATMENT SYSTEM AND METHOD - A formation treatment system includes an annulus spanning member having one or more openings therein. A tubular having one or more ports therein in fluid communication with the one or more openings. A sleeve capable of isolating or communicating the one or more ports with an ID of the tubular. A method for effecting precision formation treatment is included. | 02-09-2012 |
| 20120031611 | Erosion Migration Arrangement, Erodable Member and Method of Migrating a Slurry Flow Path - An erosion migration arrangement includes a tubular having a window therein. A body positioned within a portion of the window is configured to sacrificially erode in response to a slurry flowing through the window to thereby migrate a location of impact on a member positioned downstream of the window. | 02-09-2012 |
| 20120031244 | HANDS-FREE QUICK-CHANGE AIR TOOL CONFIGURATION - A hands-free quick-change air tool configuration for a machining apparatus includes a tool holder configured to receive a normally hand-held air operated tool. The air manifold is operably receptive of the tool holder. A plunger-type seal configuration is operably interconnected to an air supply and is in operable communication with the air manifold. A method for deburring a part in a machining apparatus is included. | 02-09-2012 |
| 20120029826 | APPARATUS AND METHOD FOR PREDICTING VERTICAL STRESS FIELDS - A method of estimating stress in an earth formation is disclosed. The method includes: dividing a domain including at least a portion of an earth formation into a first region and a second region; estimating a first vertical stress in the first region and representing the first vertical stress as at least one point load; estimating a second vertical stress in the second region by a point load based method using the first vertical stress; and estimating at least one horizontal stress based on the second vertical stress. | 02-02-2012 |
| 20120027630 | VIBRATION METHOD TO DETECT ONSET OF GAS LOCK - Vibration of an electric submersible pump assembly is monitored to produce a vibration spectrum. The vibration spectrum is compared to a known vibration signature for a pump condition that precedes gas lock. The pump condition is at least one of an impeller rotating stall condition, a diffuser stall condition, a pre-surge condition, and percentage of free gas within the wellbore fluid. Operation of the pump is then adjusted in response to the similarity of the vibration spectrum to the vibration signature for the pump condition to prevent impending gas lock. | 02-02-2012 |
| 20120024632 | DOWNHOLE SEAL AND METHOD OF LUBRICATING A DOWNHOLE TOOL - A downhole seal includes a body configured to dynamically seal to a portion of a downhole tool and a lubricant microencapsulated in a plurality of shells to form a plurality of micro particles dispersed within the body. | 02-02-2012 |
| 20120024609 | DRILLING APPARATUS WITH REDUCED EXPOSURE OF CUTTERS AND METHODS OF DRILLING - A rotary drilling apparatus and method for drilling subterranean formations, including a body being provided with at least one cutter thereon exhibiting reduced, or limited, exposure to the formation, so as to control the depth-of-cut of the at least one cutter, so as to control the volume of formation material cut per rotation of the drilling apparatus, as well as to control the amount of torque experienced by the drilling apparatus and an optionally associated bottomhole assembly regardless of the effective weight-on-bit are all disclosed. The exterior of the drilling apparatus may include a plurality of blade structures carrying at least one such cutter thereon and including a sufficient amount of bearing surface area to contact the formation so as to generally distribute an additional weight applied to the drilling apparatus against the bottom of the borehole without exceeding the compressive strength of the formation rock. | 02-02-2012 |
| 20120024539 | ROTARY COIL TUBING DRILLING AND COMPLETION TECHNOLOGY - An apparatus for performing a drilling operation or a non-drilling wellbore operation may include a string that has a rigid tubular, a connector coupled to the rigid tubular, a non-rigid tubular coupled to the connector; and at least one motor positioned along the string. The string may be disposed into a wellbore to perform one or more tasks. | 02-02-2012 |
| 20120024532 | Pressure Vortex Device to Allow Flapper Closure in High Velocity Fluid Applications - The problem of flappers that will not close due to high velocity gas rushing past and creating a vortex that has zones of high pressure pressing the flapper against the force of the torsion spring is reduced or overcome with modifications in the passage through a subsurface safety valve so as to reduce the intensity of the vortex to allow the torsion spring to pivot the flapper to closed position. Various shapes are inserted adjacent the flapper base to create turbulence to minimize or prevent the vortex and the associated pressure increases that would otherwise prevent flapper closure with the flow tube retracted. Inserts that create turbulence are placed in a recess that in part holds the flapper when it is rotated to the open position. | 02-02-2012 |
| 20120018228 | Method and Apparatus for Transforming a Pressure Drop into a Continuous Fluid Flow - An apparatus energizes a consumer of a pressurized fluid using a high pressure source and a low pressure source. The apparatus may include a fluid circuit in fluid communication with the consumer. The fluid circuit may have a first and a second reservoir. In one arrangement, the fluid circuit may have a flow control device in pressure communication with the first pressure source and the second pressure source, the flow control device being configured to cycle a pressure applied to the first and the second reservoirs using the first pressure source and the second pressure source. In some arrangements, the fluid circuit may include a flow device configured to flow fluid from a second branch to a first branch of the reservoir, and a flow control device in fluid communication with the flow device, the flow control device being configured to cycle a pressure applied to the flow device. | 01-26-2012 |
| 20120018227 | COMPONENTS AND MOTORS FOR DOWNHOLE TOOLS AND METHODS OF APPLYING HARDFACING TO SURFACES THEREOF - A component for a downhole tool includes a rotor and a hardfacing precursor. The hardfacing precursor includes a polymeric material, hard particles, and a metal. A hydraulic drilling motor includes a stator, a rotor, and a sintered hardfacing material on an outer surface of the rotor or an inner surface of the stator. Methods of applying hardfacing to surfaces include forming a paste of hard particles, metal matrix particles, a polymeric material, and a solvent. The solvent is removed from the paste to form a sheet, which is applied to a surface and heated. A component for a downhole tool includes a first hardfacing material, a second hardfacing material over the first hardfacing material and defining a plurality of pores, and a metal disposed within at least some of the pores. The metal has a melting point lower than a melting point of the second hardfacing material. | 01-26-2012 |
| 20120018225 | TILTED BIT ROTARY STEERABLE DRILLING SYSTEM - A wellbore is formed by using an apparatus that may include a shaft having an end portion, a drill bit body tiltable about the end portion, and at least one actuator configured to apply a tilting force to the drill bit body. | 01-26-2012 |
| 20120018173 | WELLBORE TOOL WITH EXHANGABLE BLADES - A method for conducting a wellbore operation includes disconnecting a radially projecting member from a first sub without uncoupling a second sub from the first sub. The method may include also coupling the first sub to the second sub with a connector that includes an electrical connection. An associated apparatus may include a sub having at least one conductor connected to a connector; and at least one radially projecting member removably coupled to the sub. | 01-26-2012 |
| 20120017674 | SMART SEALS AND OTHER ELASTOMER SYSTEMS FOR HEALTH AND PRESSURE MONITORING - Disclosed is an apparatus for monitoring a material configured to perform one or more functions or for actuating the material. One or more electrodes are coupled to the material. An electronic device is coupled to the one or more electrodes and is configured to detect an electrical characteristic of the material to monitor the material or to apply an electrical stimulus to actuate the material. | 01-26-2012 |
| 20120015852 | Nanofluids and Methods of Use for Drilling and Completion Fluids - Nanomaterial compositions are useful for applications in drilling and completion fluids as enhancers of electrical and thermal conductivity, emulsion stabilizers, wellbore strength improvers, drag reduction agents, wettability changers, corrosion coating compositions and the like. These nanomaterials may be dispersed in the liquid phase in low volumetric fraction, particularly as compared to corresponding agents of larger size. Nanofluids (fluids containing nano-sized particles) may be used to drill at least part of the wellbore. Nanofluids for drilling and completion applications may be designed including nanoparticles such as carbon nanotubes. These fluids containing nanomaterials, such as carbon nanotubes, meet the required rheological and filtration properties for application in challenging HPHT drilling and completions operations. | 01-19-2012 |
| 20120014822 | PRESSURE MITIGATING DIELECTRIC DEBRIS SEAL FOR A POTHEAD INTERFACE - A connector for connecting electrical power to a well pump motor has cable and motor connector portions that mate with each other in a connected position. The connector portions have insulating members, each of which has a number of passages and an end face. Electrical contact members are mounted in each of the passages. Contact members in the cable connector portion protrude past the end face of the insulating member. A debris seal insulates the electrical contact members in the cable connector and includes expansion slots so that when the material of the debris seal thermally expands, the expansion slots contract in response to the expansion without the debris seal impinging against either connector. | 01-19-2012 |
| 20120012792 | METHOD FOR INHIBITING FOULING IN VAPOR TRANSPORT SYSTEM - Elimination and/or mitigation of fouling in a vapor transport systems, such as vent lines and scrubber feed lines may be accomplished using an antifouling additive. The method for employing the antifouling additive includes introducing into the vapor transport system an additive including a polar solvent and corrosion inhibitor wherein: the vapor transport system is substantially water free; the vapor transport system is used to transport acidic materials; the additive is a liquid at vapor transport system operating conditions; and the additive is stable at the vapor transport system operating conditions. | 01-19-2012 |
| 20120012393 | Small Core Generation and Analysis At-Bit as LWD Tool - The present disclosure is related to an apparatus for taking a sample in a wellbore during drilling operations. The apparatus may include a drill bit configured to form a core and at least one retractable cutter internal to the drill bit for taking the sample from the core. The apparatus may also include equipment for analyzing the sample, extracting fluid from the sample, testing fluid from the sample, encapsulating the sample, and/or tagging the sample. The present disclosure is also related to a method for taking a core sample without interrupting drilling operations. The method includes taking a core sample using a drill bit configured to take a core sample using internal cutters. The method may also include analyzing the sample, extracting fluid from the sample, analyzing fluid from the sample, encapsulating the sample, and/or tagging the sample. | 01-19-2012 |
| 20120012392 | Small Core Generation and Analysis At-Bit as LWD Tool - The present disclosure is related to an apparatus for taking a sample in a wellbore during drilling operations. The apparatus may include a drill bit configured to form a core and at least one retractable cutter internal to the drill bit for taking the sample from the core. The apparatus may also include equipment for analyzing the sample, extracting fluid from the sample, testing fluid from the sample, encapsulating the sample, and/or tagging the sample. The present disclosure is also related to a method for taking a core sample without interrupting drilling operations. The method includes taking a core sample using a drill bit configured to take a core sample using internal cutters. The method may also include analyzing the sample, extracting fluid from the sample, analyzing fluid from the sample, encapsulating the sample, and/or tagging the sample. | 01-19-2012 |
| 20120012327 | Hydraulically Controlled Barrier Valve Equalizing System - A barrier valve has an equalizing feature for the ball or plug when in the closed position before it is opened. A hydraulic open and a close line are connected to a housing so that they can move a piston in opposed directions. The piston ends are sealed and the exterior of the piston is tapered to push one or more bypass valves open to connect tubing pressure across the ball when ramped off its seat. Pressure on the main hydraulic line to close the ball reverses the piston movement and allows a spring bias to close the bypass valve or valves. The equalizing system can be integrated into the barrier valve housing or can be separate as a retrofit. | 01-19-2012 |
| 20120012303 | Retrievable Tool with Ratchet Lock Feature - A releasable locking system for a subterranean tool uses a split housing for a body lock ring that in one mode is retained for its normal locking function by a setting sleeve. The setting sleeve holds the potential energy in the housing that would otherwise cause the housing to grow radially and away from a locking function. The locking is defeated as a surrounding setting sleeve with a recess is moved to juxtapose the recess with the segmented housing allowing the housing to spring into the recess and away from lock ring engagement that previously maintained the locked position. The tool can be released and removed to a surface location. | 01-19-2012 |
| 20120010819 | APPARATUS AND METHOD FOR PULSED NEUTRON MEASUREMENT - A method of estimating at least one property of an earth formation includes: constructing a matrix model of a formation; constructing a shale model of the formation, the shale model including an estimation of a concentration of at least one trace element; combining the first model and the second model to generate a formation model; and comparing measured pulsed neutron data with the mixed model to estimate the at least one property. | 01-12-2012 |
| 20120006566 | FIBER SUPPORT ARRANGEMENT AND METHOD - A fiber support arrangement for a downhole tool includes at least one tubular and at least one bracket positioning the at least one tubular spaced radially from a downhole tool and lacking contact therewith. At least two fibers are supported at the at least one tubular with at least two of the at least two fibers having a different helical angle from one another relative to an axis of the downhole tool. | 01-12-2012 |
| 20120006553 | Injection Valve with Indexing Mechanism - A flapper valve preferably used in injection application in deep subterranean locations has an actuating sleeve with a seat to accept an object. A j-slot connects the actuation sleeve movement to the housing so that with an object on the seat and an applied pressure cycle the sleeve moves the flapper to the open position. The plug is dissolved and the injection begins. The plug can have an opening so as to allow continuous injection flow as the flapper is operated. Closing the flapper involves a second object on the same seat and a pressure cycle so that a spring can push the sleeve away from the flapper to allow a torsion spring on the flapper to close it. | 01-12-2012 |
| 20120006533 | Wellbore Centralizer for Tubulars - A tubular centralizer is secured to the tubular for run in. The profile for run in is small so that damage to the centralizer is minimized during run in. When the string is in position the centralizer is actuated to change shape or volume to engage the surrounding borehole to centralize the tubular for subsequent operations such as cementing or in the case of screens for gravel packing. The centralizer can be a shape memory material that is initially compressed at above its transition temperature to hold the smaller shape. At the desired location after run in it is brought above the transition temperature and changes back to the original shape or volume to centralize the tubular string. The structure can be spaced ring segments or a cohesive ring structure with an undulating profile or radiating blades to create flow spaces in the annulus where it is deployed for flow of a sealing material or gravel, for example. | 01-12-2012 |
| 20120005966 | METHODS OF FORMING INSERTS AND EARTH-BORING TOOLS - Methods of forming inserts for earth-boring tools include providing a material in a pattern adjacent a strip, arranging a plurality of superabrasive particles proximate the pattern, and securing at least some of the plurality of superabrasive particles to the strip. The material is configured to attract or secure the plurality of superabrasive particles. Some methods may include imparting like charges to each of a plurality of superabrasive particles, placing the plurality of superabrasive particles over a strip, and securing the superabrasive particles to the strip. In some methods, a first plurality of superabrasive particles may be placed in an array between a first strip and a second strip. A second plurality of superabrasive particles may be placed in an array between the second strip and a third strip. Methods of forming earth-boring rotary drill bits include forming an insert and securing the insert to a body of the bit. | 01-12-2012 |
| 20120000673 | Installation System with Force Generating Tool - Devices and methods for applying axial force for such uses as running and releasing tools or other articles within a wellbore. An installation system is described that includes a force generator used to generate axial forces. The installation system also releasably secures an article and is capable of releasing the article once it has been emplaced or installed with the force generator. | 01-05-2012 |
| 20120000648 | Shape Memory Cement Annulus Gas Migration Prevention Apparatus - The annular space around a tubular string has a shape memory material that is in a low profile configuration for run in. After the desired position is obtained and the annulus has cement delivered to fill the annular space, the shape memory device is triggered to revert to an original shape that spans the annulus to seal the tubular and the wellbore sides of the annular space against gas migration through the cement. The structures can have varying run in shapes and can also have original shapes that when the material is triggered will act to displace cement to enhance its compaction on the tubular or the wellbore wall. Combinations of shape memory alloys and polymers are also contemplated to enhance the seal against gas migration. | 01-05-2012 |
| 20110319520 | Polyolefin Drag Reducing Agents Produced by Multiple Non-Cryogenic Grinding Stages - Fine particulate polymer drag reducing agents (DRAs) in bi-modal or multi-modal particle size distributions may be produced simply and efficiently without cryogenic temperatures. The grinding or pulverizing of polymer, e.g. non-porous poly(alpha-olefin) suitable for reducing drag in hydrocarbons may be achieved by the use of at least one liquid grinding aid and at least two grinding processors in series. The blades of the stators of the grinders are of different configuration so that granulated polymer fed to the first processor having relatively larger gaps between blades is ground to an intermediate size which is fed to the second processor having relatively smaller gaps between blades which grinds the polymer to a second, smaller size. A non-limiting example of a suitable liquid grinding aid includes a blend of propylene glycol, water and hexanol. Particulate DRA may be produced at a size of 300 microns or less in only two passes. | 12-29-2011 |
| 20110315921 | Water-Based Formulation of H2S/Mercaptan Scavenger for Fluids in Oilfield and Refinery Applications - Hydrogen sulfide (H | 12-29-2011 |
| 20110315456 | CUTTING ELEMENTS FOR EARTH-BORING TOOLS, EARTH-BORING TOOLS INCLUDING SUCH CUTTING ELEMENTS, AND METHODS OF FORMING CUTTING ELEMENTS FOR EARTH-BORING TOOLS - Cutting elements for use with earth-boring tools include a cutting table having a base surface and a substrate having a support surface. An intermediate structure and an adhesion layer extend between the base surface of the cutting table and the support surface of the substrate. Earth-boring tools include such cutting elements. Methods for fabricating cutting elements for use with earth-boring tools include forming an intermediate structure on and extending from a support surface of a substrate and adhering a cutting table comprising a superabrasive material to the support surface of the substrate. | 12-29-2011 |
| 20110315454 | Anti-Tracking Feature for Rock Bits - The harmful effects of tracking are reduced for a drill bit having roller cones with at least one of the outermost rows of active teeth containing one or more teeth having a height that does not extend to the height of at least one of the outermost rows on another roller cone on the bit. The crest on this tooth may have a length in a circumferential direction that is wider than an overall width of the tooth in the outer to inner direction. The invention may be used on any cutter row, not just the outermost row. The design may be used on a different roller cone or row, or more than one cutter row. The anti-tracking feature may be located between the leading and trailing edges of the tooth on one or more roller cones. | 12-29-2011 |
| 20110315452 | Drill Bits with Anti-Tracking Features - Drill bits with at least two roller cones of different diameters and/or utilizing different cutter pitches in order to reduce bit tracking during drilling operations are described. In particular, earth boring drill bits are provided, the bits having two or more roller cones, and optionally one or more cutter blades, the bits being arranged for reducing tracking by the roller cone teeth during operation by adjusting the teeth spacing, cone pitch angle, and/or the diameter of one or more of the cones. These configurations enable anti-tracking behavior and enhanced drilling efficiency during bit operation. | 12-29-2011 |
| 20110315444 | Apparatus and Methods for Corrosion Protection of Downhole Tools - In one aspect, an apparatus for use in a wellbore is provided that in one embodiment includes a drill bit having a bit body that is susceptible to corrosion when the drill bit is utilized in wellbore, an anode placed at a selected location on the bit body, a cathode associated with the bit body and a power source configured to provide electrical power to the anode to complete an electrical circuit between the anode and the bit body, wherein the supply of the electrical power to the anode arrests corrosion of the bit body when the drill bit is in the wellbore. | 12-29-2011 |
| 20110315400 | TUBULAR POSITIONING SYSTEM AND METHOD OF SELECTIVELY POSITIONING TUBULARS - A tubular positioning system includes a first tubular having a plurality of unique inner profiles disposed at an inner surface thereof and a plurality of second tubulars, each having a unique outer profile disposed at an outer surface thereof, that are runnable within the first tubular. The tubular positioning system is configured such that each of the plurality of second tubulars is prevented from passing one of the unique inner profiles when the unique outer profile thereon engages with one of the unique inner profiles. Each of the plurality of second tubulars is passable by each one of the unique inner profiles when the unique outer profile thereon is non-engagable with the one of the unique inner profiles. | 12-29-2011 |
| 20110315390 | Tool with Multi-Size Ball Seat Having Segmented Arcuate Ball Support Member - A tool for use in a wellbore which includes a housing having an axial flow bore and a piston sleeve moveably disposed within the flow bore. The tool is moveable between first and second operating positions by an actuation mechanism having a piston with a ball seat having a partially annular shape with an outer base and a plurality of retaining segments projecting radially inwardly therefrom. The tool can be moved between first and second operating positions with the use of actuating balls of different sizes that can be landed upon the ball seat. | 12-29-2011 |
| 20110315389 | Downhole Multiple Cycle Tool - A tool for use in a wellbore which includes a housing having an axial flow bore and a piston sleeve moveably disposed within the flow bore. The tool is moveable between first and second operating positions by an actuation mechanism having a piston with a ball seat. The tool can be moved between first and second operating positions with the use of actuating balls of different sizes that can be landed upon the ball seat. | 12-29-2011 |
| 20110315373 | Retention Mechanism for Subterranean Seals Experiencing Differential Pressure - A mandrel is formed with a projection, depression or a surface irregularity to retain the seal material sealing a passage in the mandrel or an annular space around it against differential pressure. The material can be a shape memory or swelling material. | 12-29-2011 |
| 20110315226 | Telescoping Conduits With Shape Memory Foam as a Plug and Sand Control Feature - A string with a plurality of telescoping members has the telescoping members initially sealed preferably with a shape memory foam so that the foam is initially impervious when run into a subterranean location. Then, after extension of the telescoping members, using pressure in the string, the foam gets above its transition temperature and grows axially in a passage of the telescoping members, to the point of becoming porous so that it can serve as a sand control or other debris exclusion device. Plates with openings can be deployed at opposed ends to maintain the assembly in position when subjected to differential pressure as flow goes through the foam. Alternative materials are envisioned. | 12-29-2011 |
| 20110308861 | EXPANDABLE REAMERS FOR SUBTERRANEAN DRILLING AND RELATED METHODS - An expandable reamer apparatus and methods for reaming a borehole are disclosed, including at least one laterally movable blade carried by a tubular body selectively positioned at an inward position and an expanded position. The at least one laterally movable blade, held inwardly by at least one blade-biasing element, may be forced outwardly by drilling fluid selectively allowed to communicate therewith or by at least one intermediate piston element. For example, an actuation sleeve may allow communication of drilling fluid with the at least one laterally movable blade in response to an actuation device being deployed within the drilling fluid. Alternatively, a chamber in communication with an intermediate piston element in structural communication with the at least one laterally movable blade may be pressurized by way of a movable sleeve, a downhole turbine, or a pump. | 12-22-2011 |
| 20110308805 | LAUNCHING TOOL WITH INTERLOCK SYSTEM FOR DOWNHOLE CEMENT PLUG AND METHOD - A wiper plug launching tool and a method of wiping a tubular after cementing, the wiper plug launching tool including a wiper plug; a retainer in operable communication with the wiper plug; and an interlock system operatively arranged for releasing the retainer only upon release of the interlock system. | 12-22-2011 |
| 20110308803 | Fracturing Method to Reduce Tortuosity - A series of jet nozzles have a telescoping structure designed to impact the borehole wall and initiate a fracture. The nozzles can be extended through fluid pumped through them or with some mechanical force from within the bottom hole assembly. The leading ends of the telescoping assembly can be sharp and hardened to facilitate the initiation of a formation fracture in an open hole. The telescoping structures can be disposed in a single or multiple rows with the circumferential spacing being such that each telescoping structure is designed to cover a target circumferential distance of 45 degrees or less so that jetted fluid from at least one jet will be within 22.5 degrees of a location of maximum formation stresses to reduce the tortuosity of the created fractures from jetting through the nozzles with possible enhancement of the fracturing from added annulus pressure. | 12-22-2011 |
| 20110308791 | Apparatus for Use Downhole Including Devices Having Heat Carrier Channels - A method and apparatus for regulating a temperature of a device in a tool used in a wellbore is disclosed. The device generally includes a substrate and a heat source associated with the substrate that induces heat into the substrate. The substrate includes a fluid channel therein. A fluid system provides the fluid into the fluid channel and out of the fluid channel to control the temperature of the component. | 12-22-2011 |
| 20110307191 | METHOD OF DETERMINING POSITION OF A VALVE - A method of determining the position of a valve includes, measuring pressure at a first location within a bore and measuring pressure at a second location within the bore wherein the first location and the second location are positioned on opposing longitudinal sides of the valve. The method further includes analyzing values from the measuring and attributing characteristics of the analyzing to specific valve positions. | 12-15-2011 |
| 20110304346 | METHOD FOR TREATING AND SEALING PIEZOELECTRIC TUNING FORKS - Disclosed is an apparatus for estimating a property of a fluid. The apparatus includes: a piezoelectric resonator configured to be disposed in the fluid; an electrode embedded in the piezoelectric resonator and included in a resonator circuit configured to output an electrical signal related to the property; a discontinuity defined by a surface of the piezoelectric resonator, the discontinuity altering an impedance of the resonator circuit if a high-dielectric fluid or a conductive fluid is disposed in the discontinuity; and an insulating material disposed in the discontinuity. | 12-15-2011 |
| 20110303862 | Pressure Energized Spring Seal - A metallic seal for a 90° valve features a generally rectangular shape in section that defines a chamber open to internal pressure that can enlarge the chamber to enhance the sealing effect. Sealing occurs at discrete locations at portions of the seal that are preferably rounded in shape. Overlapping ends that define the entrance to the chamber also are positioned to minimize excessive deflection and resulting plastic deformation that could close off the entrance to the chamber. | 12-15-2011 |
| 20110303466 | SUPERABRASIVE CUTTING ELEMENTS WITH CUTTING EDGE GEOMETRY HAVING ENHANCED DURABILITY AND CUTTING EFFICIENCY AND DRILL BITS SO EQUIPPED - A superabrasive cutting element including a diamond or other superabrasive material table having a peripheral cutting edge defined by at least one chamfer between a cutting face and a side surface of the table, an arcuate surface extending between the cutting face and an innermost chamfer of the at least one chamfer and a sharp, angular transition between an outermost chamfer of the at least one chamfer and the side surface. Methods of producing such superabrasive cutting elements and drill bits equipped with such superabrasive cutting elements are also disclosed. | 12-15-2011 |
| 20110303422 | LOW IMPACT BALL-SEAT APPARATUS AND METHOD - An apparatus for restricting fluid flow includes: a ball receiving element disposed in a first fluid conduit and configured to receive a ball that has been advanced through the first fluid conduit and at least partially restrict a fluid flow in the first fluid conduit; and at least one second fluid conduit in fluid communication with the first fluid conduit at an upstream location relative to the ball receiving element, the at least one second fluid conduit configured to divert a portion of the fluid from the first fluid conduit and reduce an impact between the ball and the ball receiving element. | 12-15-2011 |
| 20110303421 | APPARATUS AND METHOD FOR SEALING PORTIONS OF A WELLBORE - An apparatus for controlling fluid flow in a borehole in an earth formation includes: a carrier configured to be deployed in the borehole; and a sealing device including at least one deformable element disposed at the carrier, the deformable element configured to have a first position and a second position, the first position forming a void in the sealing device configured to retain a flowable sealing material therein, the second position causing the void to be in flowable communication with leak paths formed in at least one of the sealing device and the borehole. | 12-15-2011 |
| 20110303418 | METHOD AND APPARATUS FOR REDUCING IMPACT FORCE IN A BALL-SEAT ASSEMBLY - A method of restricting fluid flow includes: releasing a ball into a fluid conduit and receiving the ball in a ball receiving element disposed at the fluid conduit and at least partially restricting fluid flow; and at least partially reflecting one or more pressure waves resulting from an impact between the ball and the ball receiving element by a reflective boundary disposed in the fluid conduit. | 12-15-2011 |
| 20110303414 | Method for Improving the Clean-Up of Emulsified Acid Fluid Systems - Using a complex emulsion for treating a subterranean formation, such as to dissolve minerals therein (e.g. carbonates, scales, and/or filter cake) to improve permeability, substantially improves post treatment fluid clean-up for improved hydrocarbon production. The complex emulsion is made by mixing an acid aqueous phase with an oil external microemulsion to give an initial product, where the acid aqueous phase is an external phase and the microemulsion is an internal phase. Then the initial product is mixed with a second oil (e.g. xylene, diesel, toluene, kerosene, other aromatics, refined hydrocarbons and the like) containing an emulsifier to make a complex emulsion. | 12-15-2011 |
| 20110303294 | BALL-SEAT APPARATUS AND METHOD - An apparatus for restricting fluid flow includes: a ball receiving element disposed in a fluid conduit and configured to receive a ball that has been advanced through the fluid conduit and at least partially restrict fluid flow; and at least one feature disposed on at least one of the fluid conduit and the ball seat configured to reflect pressure waves generated by an impact between the ball and the ball seat. | 12-15-2011 |
| 20110301848 | METHOD OF DIAGNOSING FLOW AND DETERMINING COMPOSITIONAL CHANGES OF FLUID PRODUCING OR INJECTING THROUGH AN INFLOW CONTROL DEVICE - A method of diagnosing flow through an inflow control device includes, producing or injecting fluid through an inflow control device, measuring temperatures near or at the inflow control device over time while producing or injecting fluid therethrough, and attributing temporal changes in temperature to changes in the fluid that is produced or injected. | 12-08-2011 |
| 20110297617 | SEPARATOR AND METHOD - A separator includes a separation arrangement having a roller; and a belt disposed about the roller. Feed material introduced to the separator such as tar sand, is separated into sand and oil so that discharge from the separator will be substantially separate material streams of sand and oil. A method and system are included. | 12-08-2011 |
| 20110297452 | DETRITUS FLOW MANAGEMENT FEATURES FOR DRAG BIT CUTTERS AND BITS SO EQUIPPED - Rock detritus created by a drag bit cutter shearing subterranean formation material may flow under the cutter and attach itself to the side surface of the cutter barrel by differential pressure-induced sticking, and dilate. This attached material, confined by hydrostatic pressure, can create and strengthen a barrier between the cutter and the virgin rock being cut. The detritus barrier absorbs bit weight and reduces cutter efficiency by impairing contact of the cutter with the virgin rock formation. Increasing friction between the rock detritus and a side surface of the cutter barrel inhibits detritus flow, reduces build up, and allows hydrostatic pressure to contribute to, rather than inhibit, the cutting process. Similar beneficial results may be obtained when hydrostatic pressure drilling fluid is permitted to communicate through holes in the side surface of the cutter, or through an otherwise permeable side surface alleviating detritus sticking due to differential pressure effects. | 12-08-2011 |
| 20110297443 | EXPANDABLE REAMER APPARATUS AND RELATED METHODS - An expandable reamer apparatus and methods for reaming a borehole, wherein a laterally movable blade carried by a tubular body may be selectively positioned at an inward position and an expanded position. The laterally movable blade, held inwardly by blade-biasing elements, may be forced outwardly by drilling fluid selectively allowed to communicate therewith by way of an actuation sleeve disposed within the tubular body. Alternatively, a separation element may transmit force or pressure from the drilling fluid to the movable blade. Further, a chamber in communication with the movable blade may be pressurized by way of a downhole turbine or pump. A ridged seal wiper, compensator, movable bearing pad, fixed bearing pad preceding the movable blade, or adjustable spacer element to alter expanded blade position may be included within the expandable reamer. In addition, a drilling fluid pressure response indicating an operational characteristic of the expandable reamer may be generated. | 12-08-2011 |
| 20110297379 | Slickline Run Hydraulic Motor Driven Tubing Cutter - A tubing cutter is run in with a bottom hole assembly that includes a seal and support within the tubing to be cut. A ported sub allows pressurized fluid pumped from the surface to enter the bottom hole assembly above the sealed support location and to be directed to set an anchor and to a fluid driven motor such as a progressive cavity motor that is in turn connected to the tubing cutter at the rotor of the progressive cavity motor. The rotation of the cutter with its blades extended cuts the tubular as the fluid exiting the stator goes to the lower end of the tubing being cut and can return to the surface through an annulus around the tubing to be cut. Other configurations such as cutting casing or cutting casing through tubing are also envisioned. | 12-08-2011 |
| 20110290565 | Hybrid Bit with Variable Exposure - An earth boring drill bit comprising a bit body having a bit profile including nose, shoulder, and gage sections; a plurality of fixed cutting elements secured to the body and defining a fixed cutter profile; and a roller cone rotatably secured to the body, the roller cone having a plurality of roller cone cutting elements defining a roller cutter profile, wherein the fixed cutter profile extends beyond the roller cutter profile in at least one of the sections and the roller cutter profile extends beyond the fixed cutter profile in at least one of the sections. The roller cutter profile may extend beyond the fixed cutter profile in the shoulder and gage sections, possibly with the fixed cutter profile extending beyond the roller cutter profile in the nose section and/or a cone section. | 12-01-2011 |
| 20110290560 | EARLY WEAR DETECTION - A drill bit with a bit body having a central bore in communication with a plurality of nozzles for directing drilling fluid; a plurality of cutters defining a cutting face of the bit; and a passageway extending from the central bore toward the cutting face, such that excessive wear of the cutting face opens the passageway to allow the drilling fluid to flow therethrough, thereby reducing a surface pressure of the drilling fluid and indicating excessive wear of the bit. The passageway may extend to adjacent, or within one half inch or three inches of, the cutting face, such that excessive wear opens the passageway to the cutting face. In some cases, the passageway may actually extend through the cutting face with a plug inserted into the passageway at the cutting face to prevent the drilling fluid from exiting the passageway absent wear of the bit. | 12-01-2011 |
| 20110290334 | Wellbore Debris Cleanout Assembly and Method to Remove Debris from a Debris Catcher - A cleanout assembly for removal of debris from a debris chamber in a wellbore cleaning tool. The cleanout assembly includes a mandrel, a boot radially surrounding the mandrel and a debris chamber defined radially between the mandrel and the boot. The boot has one or more windows therein to permit debris to be cleaned out of the debris chamber. A cover is disposed within the debris chamber and is movable within the debris chamber between a first position, wherein the one or more windows are blocked by the cover, and a second position, wherein the one or more windows are not blocked by the cover | 12-01-2011 |
| 20110287924 | METHODS OF FORMING AT LEAST A PORTION OF EARTH-BORING TOOLS, AND ARTICLES FORMED BY SUCH METHODS - Methods of forming at least a portion of an earth-boring tool include providing particulate matter comprising a hard material in a mold cavity, melting a metal and the hard material to form a molten composition comprising a eutectic or near-eutectic composition of the metal and the hard material, casting the molten composition to form the at least a portion of an earth-boring tool within the mold cavity, and providing an inoculant within the mold cavity. Methods of forming a roller cone of an earth-boring rotary drill bit comprise forming a molten composition, casting the molten composition within a mold cavity, solidifying the molten composition to form the roller cone, and controlling grain growth using an inoculant as the molten composition solidifies. Articles comprising components of earth-boring tools are fabricated using such methods. | 11-24-2011 |
| 20110287238 | METHODS OF FORMING AT LEAST A PORTION OF EARTH-BORING TOOLS, AND ARTICLES FORMED BY SUCH METHODS - Methods of forming at least a portion of an earth-boring tool include providing at least one insert in a mold cavity, providing particulate matter in the mold cavity, melting a metal and the hard material to form a molten composition, and casting the molten composition. Other methods include coating at least one surface of a mold cavity with a coating material having a composition differing from a composition of the mold, melting a metal and a hard material to form a molten composition, and casting the molten composition. Articles comprising at least a portion of an earth-boring tool include at least one insert and a solidified eutectic or near-eutectic composition including a metal phase and a hard material phase. Other articles include a solidified eutectic or near-eutectic composition including a metal phase and a hard material phase and a coating material in contact with the solidified eutectic or near-eutectic composition. | 11-24-2011 |
| 20110285155 | Magnetic Retrieval Apparatus and Method for Retaining Magnets on a Downhole Magnetic Retrieval Apparatus - Magnetic retrieval tools for use in a wellbore or other tubular member to remove metallic debris. A magnetic retrieval tool includes a tool body having a central shaft with a plurality of ribs that project radially outwardly therefrom. The ribs present lateral sides that have recesses formed therein. Magnet bars are retained within the recesses by wedge members and retaining rings. The magnet bars include a hollow protective housing that encloses a plurality of magnets. Retaining plugs are used to secure the magnets within the housing. | 11-24-2011 |
| 20110284246 | PERFORATING GUN ASSEMBLY TO CONTROL WELLBORE FLUID DYNAMICS - A downhole tool used in the pressure isolation of adjacent subterranean formations. The downhole tool may comprise flow restriction devices along the outer circumference for impeding flow along the length of the tool. The tool may further comprise a perforating gun and an accumulator. Impeding flow along the length of the tool provides a dynamic flow restriction within the wellbore that precludes fluid flowing from one subterranean zone to an adjacent zone. | 11-24-2011 |
| 20110284238 | INSERTABLE SURFACE-DRIVEN PUMP - Wellbore tubing having an annular seating member and an annular anti-rotation member can be used for one or more types of surface driven submersible pumps. In one embodiment, a stator and a rotor of a surface driven progressing cavity pump can be inserted into the tubing after the tubing is deployed. In one embodiment, a surface driven reciprocating pump can be inserted into the tubing, later withdrawn from the tubing, and then a progressing cavity pump can be inserted into the same tubing. | 11-24-2011 |
| 20110284234 | APPARATUS AND METHODS FOR PROVIDING TUBING INTO A SUBSEA WELL - In some embodiments, apparatus useful for providing tubing into an underwater well includes at least one surface injector configured to control movement of the tubing into and out of the well and at least one underwater injector configured to apply pushing and pulling forces to the tubing. | 11-24-2011 |
| 20110284232 | Disposable Downhole Tool - A disposable downhole tool is disclosed. The tool is suitable for use as a frac tool. The tool includes a housing having an inner wall surface defining a bore. The tool also includes a valve structure disposed within the bore, the valve structure comprising a disposable plug seat, the disposable plug seat comprising a first natural material. The disposable tool may also include a disposable plug in fluid sealing engagement with the seat, the plug comprising a second natural material, the plug and the plug seat comprising a plug valve. The first and second natural materials may include sedimentary rock, such as various forms of limestone, including Carrara marble or Indiana limestone. | 11-24-2011 |
| 20110284231 | Electromagnetic Wave Treatment Of Oil Wells - A method including exposing a substance to a first type of electromagnetic waves generated by a first device. The frequency of the first type of electromagnetic waves is in the radio frequency range and the device preferably consumes no more than about 1,000 Watts of power. The exposure takes place for a period of time and at a frequency sufficient to detectably alter at least one physical property of the substance as it existed prior to the exposure. The substance is selected from the group consisting of a hydrate, a water and oil emulsion, clay, scale, cement, a completion fluid, tank sediment and iron sulfide. | 11-24-2011 |
| 20110284228 | Increasing the Viscosity of Viscoelastic Fluids - In hydrocarbon recovery applications, viscoelastic surfactant (VES) gelled fluids may be preheated to a temperature that will increase viscosity of the VES gelled fluid. The preheated VES gelled fluid retains at least a portion of its preheated viscosity when cooled such as by introduction into a low temperature condition. In an embodiment, the VES gelled fluid may be a drilling fluid, completion fluid, or fracturing fluid, and the low temperature condition may be an offshore operation, an operation in a locality having a cold climate, and/or a shallow oil, gas, or both land-based operation where the formation temperature is 120° F. or less. The surfactant in the VES gelled fluid may be one or more of an amine, amine salt, quaternary ammonium salt, betaine, amidoamine oxide, amine oxide, and combinations thereof. | 11-24-2011 |
| 20110284211 | Retaining and Isolating Mechanisms for Magnets in a Magnetic Cleaning Tool - A magnetic retrieval tool used for collecting metallic debris and material from within a wellbore or other surrounding downhole tubular. The tool includes a tool mandrel. A removable insert resides upon the tool mandrel. The insert retains a plurality of individual magnets in a fixed array or matrix surrounding the mandrel. | 11-24-2011 |
| 20110284210 | Dual-Pole Magnetic Attraction Downhole Magnetic Retrieval Apparatus - A magnetic retrieval tool used for collecting metallic debris and material from within a wellbore or other surrounding downhole tubular. The tool includes a tool mandrel with a removable insert which contains one or more magnets. The insert is formed such that both the north and south magnetic poles of the one or more magnets are able to attract metallic debris. | 11-24-2011 |
| 20110284203 | Downhole Magnetic Retrieval Devices with Fixed Magnetic Arrays - A magnetic retrieval tool used for collecting metallic debris and material from within a wellbore or other surrounding downhole tubular. The tool includes a tool mandrel with one or more pockets formed in its outer radial surface. A removable insert resides within each pocket. Each of the inserts retains a plurality of individual magnets in a fixed array or matrix surrounding the mandrel. | 11-24-2011 |
| 20110284179 | METHODS OF FORMING AT LEAST A PORTION OF EARTH-BORING TOOLS - Methods of forming at least a portion of an earth-boring tool include providing particulate matter comprising a hard material in a mold cavity, melting a metal and the hard material to form a molten composition comprising a eutectic or near-eutectic composition of the metal and the hard material, casting the molten composition to form the at least a portion of an earth-boring tool within the mold cavity, and adjusting a stoichiometry of at least one hard material phase of the at least a portion of the earth-boring tool. Methods of forming a roller cone of an earth-boring rotary drill bit comprise forming a molten composition, casting the molten composition within a mold cavity, solidifying the molten composition to form the roller cone, and converting an eta-phase region within the roller cone to at least one of WC and W | 11-24-2011 |
| 20110283839 | METHOD OF MONITORING WEAR OF ROCK BIT CUTTERS - A method of monitoring the wear of drill bits for drilling wells in earth formations, several embodiments of an improved drill bit for drilling a well in an earth formation, and methods of manufacture. In one embodiment, the bit is assembled by forming the bit, including a bit body and a plurality of cutting components; introducing a wear detector into the bit; and providing a module to monitor the wear detector and generate an indication of bit wear. The wear detector may be a witness material that may change a characteristic of at least a portion of the bit. The module may detect when the witness material is separated from the bit. The wear detector may be introduced during or after formation of the bit. The bit wear may be displayed for an operator. | 11-24-2011 |
| 20110278460 | METHOD AND APPARATUS FOR DETERMINING THE COKE GENERATION TENDENCY OF HYDROCARBONS - Near IR spectroscopy may be used for determining the coke generation tendency of a hydrocarbon. The coke generation tendency of hydrocarbons may be used to control refining conditions. An apparatus for determining the coke generation tendency of hydrocarbons comprising a near infrared spectrophotometer and other components may be used to make the determinations continuously. | 11-17-2011 |
| 20110278024 | PREVENTION OR MITIGATION OF STEEL CORROSION CAUSED BY COMBUSTION GAS - Recovering oil and gas from subterranean oil and gas reservoirs using gas injection can serve an additional purpose of capturing and sequestering carbon dioxide. This can be accomplished where the feed gas for the gas injection is, at least in part, carbon dioxide from a carbon dioxide capture and sequestration process. Corrosion of steel in a gas transportation system due to the presence of carbon dioxide and water and oxygen may be prevented or at least mitigated by employing a corrosion inhibitor effective at preventing or mitigating steel corrosion in the presence of oxygen and carbon dioxide. The corrosion inhibitors may incorporate alkyl succinic acids, alkyl succinic anhydrides, and trimer acids. | 11-17-2011 |
| 20110278016 | VALVE, VALVING DEVICE AND METHOD - A valving device includes a tubular with a port and a sleeve slidably sealingly engaged with the tubular between a first position and a second position. The sleeve is configured to occlude the port when in the first position and uncover the port when in the second position. The valving device is configured such that pressure inside the tubular does not urge the sleeve toward the second position while pressure applied radially outwardly of the tubular and the sleeve urge the sleeve toward the second position. | 11-17-2011 |
| 20110277585 | STROKE-CONTROLLING DEVICE AND METHOD - A stroke-controlling device includes a first body having a first surface and a second body movably engaged with the first body having a second surface. A dimension between the first surface and the second surface is configured to engage a tool. And at least one dog is in operable communication with the first body and the second body to maintain the dimension at a first value when in a first position and to limit reduction of the dimension to a second value when in to a second position. | 11-17-2011 |
| 20110274565 | MODULAR BELLOWS WITH INSTRUMENTATION UMBILICAL CONDUIT FOR ELECTRICAL SUBMERSIBLE PUMP SYSTEM - An electrical submersible pumping (ESP) system for use in a wellbore having a pressure equalization system that employs modules with a bellows. The bellows axially expands and contracts in response to pressure fluctuations encountered in the wellbore. The modules are attachable in series on a lower end of a motor of the ESP to form the string, where the string can range from a single module to a multiplicity of modules, depending on the application. The bellows has a conduit axially inserted through the bellows that includes an umbilical and has an end in pressure communication with the motor. | 11-10-2011 |
| 20110272195 | Method and Apparatus to Adjust Weight-On-Bit/Torque-On-Bit Sensor Bias - Apparatuses and methods for adjusting weight-on-bit/torque-on-bit sensor bias in a drill bit. The apparatus may include a bit adjustment device disposed at least partially in a cavity in a bit shank. The bit adjustment device includes electronics and sensors for estimating a weight-on-bit/torque-on-bit bias. The method includes adjusting the weight-on-bit/torque-on-bit sensor bias of a drill bit. The method may include adjusting force on a bit adjustment device to adjust weight-on-bit/torque-on-bit sensor bias. The method may also include securing the bit adjustment device within the cavity of the bit shank after the desired weight-on-bit/torque-on-bit sensor bias has been achieved. | 11-10-2011 |
| 20110271470 | Brush Assembly with Non-Rotating Stabilizer and Brushes - A brush assembly for cleaning a surrounding tubular member. The brush assembly includes a brush portion that is rotationally moveable with respect to a central tool mandrel and debris chamber. The brush portion includes at least one brush and a stabilizer. | 11-10-2011 |
| 20110266374 | Slurry Outlet in a Gravel Packing Assembly - An outlet member is preferably made from a hardened material and is cut from a tubular shape at an angle of preferably 5 degrees. At its upper end it is cut away so that slurry flow can exit ports in a hardened sleeve and impinge directly onto the upstream portion of the insert. The impingement changes the flow stream angle as the flow continues through a fully tubular middle segment of the insert that leads out to an elongated exit ramp whose downstream end sits preferably flush with the outer housing wall so as to protect the insert from mechanical shocks and retain the insert axially when slurry flows through it. Other external details aid in fixation when in use. | 11-03-2011 |
| 20110266217 | METHOD FOR CLEANING FILTER SEPARATION SYSTEMS - High shear separations of suspensions and colloid suspensions may be preformed using a fouling reduction agent to optimize the separations. The fouling reduction agents are solids. Exemplary of such solids are powdered cellulose, clays, diatomaceous earth and the like. Process streams which may treated include refinery process waste water, chemical process waste water, food processing waste water, power generation waste water, chemical product streams, and chemical intermediate streams. | 11-03-2011 |
| 20110266070 | CUTTING ELEMENTS, EARTH-BORING TOOLS, AND METHODS OF FORMING SUCH CUTTING ELEMENTS AND TOOLS - Cutting elements include a volume of superabrasive material. The volume of superabrasive material comprises a front-cutting surface, an end-cutting surface, a cutting edge, and lateral side surfaces extending between and intersecting each of the front-cutting surface and the end-cutting surface. An earth-boring tool may comprise a bit body and at least one cutting element attached to the bit body. Methods of forming cutting elements comprise forming a volume of superabrasive material comprising forming a front-cutting surface, an end-cutting surface, a cutting edge, and lateral side surfaces extending between and intersecting each of the front-cutting surface and the end-cutting surface. Methods of forming earth-boring tools comprise forming a cutting element and attaching the cutting element to an earth-boring tool. | 11-03-2011 |
| 20110266069 | CASING SHOES INCLUDING CUTTING ELEMENTS, CUTTING ELEMENTS FOR EARTH-BORING TOOL, AND RELATED METHODS - A casing bit, which may comprise a composite structure, for drilling a casing section into a subterranean formation, and which may include a portion configured to be drilled therethrough, is disclosed. Cutting elements and methods of use are disclosed. Adhesive, solder, electrically disbonding material, and braze affixation of a cutting element are disclosed. Differing abrasive material amount, characteristics, and size of cutting elements are disclosed. Telescoping casing sections and bits are disclosed. Aspects and embodiments are disclosed including: at least one gage section extending from a nose portion, at least one rotationally trailing groove formed in at least one of the plurality of blades, a movable blade, a leading face comprising superabrasive material, at least one of a drilling fluid nozzle and a sleeve, grooves for preferential failure, at least one rolling cone affixed to the nose portion, at least one sensor, discrete cutting element retention structures, and percussion inserts. | 11-03-2011 |
| 20110266068 | EARTH-BORING TOOLS AND METHODS OF FORMING EARTH-BORING TOOLS - Methods of fabricating earth-boring tools include forming an outer portion of an earth-boring tool from a powder mixture comprising hard particles and matrix particles comprising a metal matrix material, disposing a molten material at least partially within the outer portion of the earth-boring tool, and forming the molten material into another portion of the earth-boring tool. Methods of fabricating a bit body of an earth-boring rotary drill bit include forming an outer portion comprising a plurality of hard particles and a plurality of matrix particles comprising a metal matrix material and casting a molten material at least partially within the outer portion of the bit body to form another portion of the bit body. Earth-boring tools include a body for engaging a subterranean borehole having an outer portion and an inner portion comprising at least one material solidified within a cavity formed within the outer portion. | 11-03-2011 |
| 20110266060 | EXPANDABLE EARTH-BORING WELLBORE REAMERS AND RELATED METHODS - Expandable reamer tools include an outer body, a fluid passageway extending through the outer body, and at least one blade configured to slide relative to the outer body between a refracted position and an expanded position in a direction oriented at an acute angle of less than ninety degrees (90°) to a longitudinal axis of the outer body. In some embodiments, the tools may include a moveable inner sleeve member configured to selectively allow hydraulic fluid pressure within the fluid passageway to act directly on the at least one blade. Methods for enlarging a borehole using such expandable reamer tools and methods for removing such expandable reamer tools from a borehole are also disclosed. | 11-03-2011 |
| 20110266059 | POLYCRYSTALLINE DIAMOND COMPACTS, CUTTING ELEMENTS AND EARTH-BORING TOOLS INCLUDING SUCH COMPACTS, AND METHODS OF FORMING SUCH COMPACTS AND EARTH-BORING TOOLS - Methods of forming a polycrystalline diamond compact for use in an earth-boring tool include forming a body of polycrystalline diamond material including a first material disposed in interstitial spaces between inter-bonded diamond crystals in the body, removing the first material from interstitial spaces in a portion of the body, selecting a second material promoting a higher rate of degradation of the polycrystalline diamond compact than the first material under similar elevated temperature conditions and providing the second material in interstitial spaces in the portion of the body. Methods of drilling include engaging at least one cutter with a formation and wearing a second region of polycrystalline diamond material comprising a second material faster than the first region of polycrystalline diamond material comprising a first material. Polycrystalline diamond compacts and earth-boring tools including such compacts are also disclosed. | 11-03-2011 |
| 20110266058 | PDC Sensing Element Fabrication Process and Tool - A Polycrystalline Diamond Compact (PDC) cutter for a rotary drill bit is provided with an integrated sensor and circuitry for making measurements of a property of a fluid in the borehole and/or an operating condition of the drill bit. A method of manufacture of the PDC cutter and the rotary drill bit is discussed. | 11-03-2011 |
| 20110266055 | Apparatus and Methods for Detecting Performance Data in an Earth-Boring Drilling Tool - Methods and associated tools and components related to generating and obtaining performance data during drilling operations of a subterranean formation is disclosed. Performance data may include thermal and mechanical information related to earth-boring drilling tool during a drilling operation are disclosed. For example, a cutting element of an earth-boring drilling tool may include a substrate with a cutting surface thereon. The cutting element may further include at least one thermistor sensor coupled with the cutting surface, and a conductive pathway operably coupled with the at least one thermistor sensor. The at least one thermistor sensor may be configured to vary a resistance in response to a change in temperature. The conductive pathway may be configured to provide a current path through the at least one thermistor sensor in response to a voltage. Other methods, tools and components are provided. | 11-03-2011 |
| 20110266054 | At-Bit Evaluation of Formation Parameters and Drilling Parameters - An apparatus for forming a wellbore in a formation may include a bit body and a sensor in the bit body. The sensor may include at least one cutting element and may be configured to generate information relating to a parameter of interest when the drill bit engages a wellbore surface. | 11-03-2011 |
| 20110265988 | Wellbore Cleaning Devices - A wellbore cleaning device having a unitary tool mandrel surrounded by a retaining sleeve that is rotatable with respect to the mandrel. A locking ring is used to secure the retaining sleeve to the mandrel. Cleaning blades are retained within recesses in the retaining sleeve and are biased radially outwardly from the recesses by springs. | 11-03-2011 |
| 20110265941 | On Site Manufactured Self Expanding Tubulars and Method - Tubular is manufactured at a well site to a predetermined size using flat stock that is rolled into a c-shape from a plurality of feed locations. The c-shapes have open segments that are offset from each other to form the tubular shape. A binder material such as a reactive nano-foil is applied on assembly as the tubular shape is formed. The manufactured shape is reduced to a smaller dimension for run in. The cross-sectional reduced profile shape can be a smaller diameter or a crescent or an undulating shape that is triggered to revert to the original manufactured shape and size when placed downhole. The manufacturing method is capable of making continuous pipe for the length of the zone without connections. The bonding of the segments is preferably done at the time of fabrication at the well site but can also occur at least in part downhole. | 11-03-2011 |
| 20110261647 | Resistivity Measurement Through Metal Casing Using Magnetic Field and Magnetoacoustic Phenomena - Measurements of acoustic velocities are made through a case borehole in the absence and presence of an applied magnetic field. A formation resistivity parameter may be estimated from differences in the acoustic velocities. | 10-27-2011 |
| 20110261361 | System and Method for Effective Isolation of an Interferometer - An interferometer has its performance enhanced by being suspended in a housing that is optionally evacuated. The frame that supports the interferometer is secured to a cover for the housing with a plurality of studs having mechanical vibration isolators. The frame comprises a support flange with a foam layer beneath the interferometer. An optics tray is disposed above the interferometer and holds the assembly to the support flange. The fibers that are connected to the interferometer enter the side of the housing and the entry is sealed off to allow the interior of the housing to be evacuated. | 10-27-2011 |
| 20110259647 | SYSTEMS FOR MANUFACTURING DOWNHOLE TOOLS AND DOWNHOLE TOOL PARTS - Methods, systems and compositions for manufacturing downhole tools and downhole tool parts for drilling subterranean material are disclosed. A model having an external peripheral shape of a downhole tool or tool part is fabricated. Mold material is applied to the external periphery of the model. The mold material is permitted to harden to form a mold about the model. The model is eliminated and a composite matrix material is cast within the mold to form a finished downhole tool or tool part. | 10-27-2011 |
| 20110259643 | CASING AND LINER DRILLING SHOES HAVING SPIRAL BLADE CONFIGURATIONS, AND RELATED METHODS - A casing bit, which may comprise a composite structure, for drilling a casing section into a subterranean formation, and which may include a portion configured to be drilled therethrough, is disclosed. Cutting elements and methods of use are disclosed. Adhesive, solder, electrically disbonding material, and braze affixation of a cutting element are disclosed. Differing abrasive material amount, characteristics, and size of cutting elements are disclosed. Telescoping casing sections and bits are disclosed. Aspects and embodiments are disclosed including: at least one gage section extending from the nose portion, at least one rotationally trailing groove formed in at least one of the plurality of blades, a movable blade, a leading face comprising superabrasive material, at least one of a drilling fluid nozzle and a sleeve, grooves for preferential failure, at least one rolling cone affixed to the nose portion, at least one sensor, discrete cutting element retention structures, and percussion inserts. | 10-27-2011 |
| 20110259642 | CUTTING ELEMENTS FOR EARTH-BORING TOOLS, EARTH-BORING TOOLS INCLUDING SUCH CUTTING ELEMENTS AND RELATED METHODS - Cutting elements, earth-boring drill bits having such cutting elements and related methods are described herein. In some embodiments, a cutting element for an earth-boring tool may include a diamond table having an indentation in a cutting face thereof and a shaped feature in a substrate at the interface between the diamond table and the substrate, the shaped feature corresponding to the indentation in the cutting face of the diamond table. In further embodiments, a cutting element for an earth-boring tool may include a sacrificial structure positioned within an indentation in a diamond table. In additional embodiments, a method of forming a cutting element may include positioning a sacrificial structure in a mold, positioning a powdered precursor material over the sacrificial structure, and pressing and sintering the powdered precursor material to form a diamond table having an indentation in a cutting face formed by the sacrificial structure. | 10-27-2011 |
| 20110259608 | CASING AND LINER DRILLING SHOES WITH PORTIONS CONFIGURED TO FAIL RESPONSIVE TO PRESSURE, AND RELATED METHODS - A casing bit, which may comprise a composite structure, for drilling a casing section into a subterranean formation, and which may include a portion configured to be drilled therethrough, is disclosed. Cutting elements and methods of use are disclosed. Adhesive, solder, electrically disbonding material, and braze affixation of a cutting element are disclosed. Differing abrasive material amount, characteristics, and size of cutting elements are disclosed. Telescoping casing sections and bits are disclosed. Aspects and embodiments are disclosed including: at least one gage section extending from the nose portion, at least one rotationally trailing groove formed in at least one of the plurality of blades, a movable blade, a leading face comprising superabrasive material, at least one of a drilling fluid nozzle and a sleeve, grooves for preferential failure, at least one rolling cone affixed to the nose portion, at least one sensor, discrete cutting element retention structures, and percussion inserts. | 10-27-2011 |
| 20110259606 | CASING SHOES HAVING DRILLABLE AND NON-DRILLABLE CUTTING ELEMENTS IN DIFFERENT REGIONS AND RELATED METHODS - A casing bit, which may comprise a composite structure, for drilling a casing section into a subterranean formation, and which may include a portion configured to be drilled therethrough, is disclosed. Cutting elements and methods of use are disclosed. Adhesive, solder, electrically disbonding material, and braze affixation of a cutting element are disclosed. Differing abrasive material amount, characteristics, and size of cutting elements are disclosed. Telescoping casing sections and bits are disclosed. Aspects and embodiments are disclosed including: at least one gage section extending from a nose portion, at least one rotationally trailing groove formed in at least one of the plurality of blades, a movable blade, a leading face comprising superabrasive material, at least one of a drilling fluid nozzle and a sleeve, grooves for preferential failure, at least one rolling cone affixed to the nose portion, at least one sensor, discrete cutting element retention structures, and percussion inserts. | 10-27-2011 |
| 20110259605 | CASING AND LINER DRILLING SHOES HAVING SELECTED PROFILE GEOMETRIES, AND RELATED METHODS - A casing bit, which may comprise a composite structure, for drilling a casing section into a subterranean formation, and which may include a portion configured to be drilled therethrough, is disclosed. Cutting elements and methods of use are disclosed. Adhesive, solder, electrically disbonding material, and braze affixation of a cutting element are disclosed. Differing abrasive material amount, characteristics, and size of cutting elements are disclosed. Telescoping casing sections and bits are disclosed. Aspects and embodiments are disclosed including: at least one gage section extending from the nose portion, at least one rotationally trailing groove formed in at least one of the plurality of blades, a movable blade, a leading face comprising superabrasive material, at least one of a drilling fluid nozzle and a sleeve, grooves for preferential failure, at least one rolling cone affixed to the nose portion, at least one sensor, discrete cutting element retention structures, and percussion inserts. | 10-27-2011 |
| 20110259604 | CASING AND LINER DRILLING SHOES HAVING INTEGRATED OPERATIONAL COMPONENTS, AND RELATED METHODS - A casing bit, which may comprise a composite structure, for drilling a casing section into a subterranean formation, and which may include a portion configured to be drilled therethrough, is disclosed. Cutting elements and methods of use are disclosed. Adhesive, solder, electrically disbonding material, and braze affixation of a cutting element are disclosed. Differing abrasive material amount, characteristics, and size of cutting elements are disclosed. Telescoping casing sections and bits are disclosed. Aspects and embodiments are disclosed including: at least one gage section extending from the nose portion, at least one rotationally trailing groove formed in at least one of the plurality of blades, a movable blade, a leading face comprising superabrasive material, at least one of a drilling fluid nozzle and a sleeve, grooves for preferential failure, at least one rolling cone affixed to the nose portion, at least one sensor, discrete cutting element retention structures, and percussion inserts. | 10-27-2011 |
| 20110259587 | APPARATUS AND METHOD FOR SEALING PORTIONS OF A WELLBORE - An apparatus for controlling fluid flow in a borehole in an earth formation includes: a carrier configured to be deployed in the borehole; and a shape memory device disposed at the carrier, the shape memory device including a shape memory material having a glass transition temperature, the shape memory material configured to modify the glass transition temperature to a temperature lower than a borehole temperature in response to a trigger, and change from a glass state to a rubber state in response to the borehole temperature to prevent fluid flowing through the shape memory device. | 10-27-2011 |
| 20110259579 | Sealing Feed Through Lines for Downhole Swelling Packers - A swelling element on a packer has a trough formed on a longitudinal axis. The control line or cable or conduit that needs to run along the string where the packer is mounted is first wrapped in a preferably non-swelling underlayment that can be a loose scroll or have its seam sealed. A swelling cover is placed over the underlayment using a seam that can be longitudinal or spiral to allow rapid deployment. The covering assembly for the control line or conduit is placed in the slot of the swelling element of the packer. The line or cable continues out opposed ends and can be secured to the tubular string with clamps. In an alternative embodiment the control line is covered with a swelling material and forced into a groove that runs the length of the packer swelling element. | 10-27-2011 |
| 20110258936 | METHODS OF FORMING POLYCRYSTALLINE COMPACTS - Methods of forming a polycrystalline compact for use in an earth-boring tool include sintering a plurality of hard particles with catalyst material to faun a polycrystalline material that includes a plurality of inter-bonded particles of hard material integrally formed with the catalyst material and introducing at least a portion of the polycrystalline material to a reactive material to remove at least a portion of the catalyst material contained within the polycrystalline material. The reactive material may include at least one of a molten glass, an ionic compound, a leaching liquor, and a chemical plasma. The reactive material may be introduced to the polycrystalline material at a temperature of greater than or equal to a melting point thereof. | 10-27-2011 |
| 20110257886 | Three-Coil System With Short Nonconductive Inserts for Transient MWD Resistivity Measurements - A three-coil bucking system is used for determination of a formation resistivity property ahead of the drill bit. The conductive drill pipe is provided with non-conductive inserts in the proximity of at least one transmitter and at least two receivers. Transient electromagnetic signals are processed to give the estimate of the resistivity property and for geosteering. | 10-20-2011 |
| 20110257328 | POLYMERS USEFUL AS DEMULSIFIERS AND CLARIFIERS - A polymer useful as a flocculent, demulsifier or water clarifier may be selected from those having the general formula: | 10-20-2011 |
| 20110255951 | Axial Thrust Balanced Impeller For Use With A Downhole Electrical Submersible Pump - An electrical submersible pumping system having a pump, a motor, a shaft connecting the pump and motor. Coaxially stacked rotating impellers and stationary diffusers are coaxially housed within the pump. Radial ports are formed in a hub of the diffusers that direct fluid pressurized by an impeller to a cavity formed on the shroud of the impeller. Axial ports are formed in the shrouds of the impellers that direct fluid from the cavity to a fluid flow passage within the impeller. Strategic placement and sizing of the radial and axial ports balances thrust forces exerted onto the impeller. | 10-20-2011 |
| 20110253452 | CORING APPARATUS AND METHODS - A coring apparatus is provided, which apparatus, in one exemplary embodiment, includes a rotatable member coupled to a drill bit configured to drill a core from a formation, a substantially non-rotatable member in the rotatable member configured to receive the core from the formation, and a sensor configured to provide signals relating to rotation between the rotatable member and the substantially non-rotatable member during drilling of the core from the formation, and a circuit configured to process the signals from the sensor to estimate rotation between the rotatable member and the non-rotatable member. | 10-20-2011 |
| 20110253448 | Formation Evaluation Using a Bit-Based Active Radiation Source and a Gamma Ray Detector - A drill bit made according to one embodiment includes a source configured to induce radiation into a formation during drilling of a wellbore and a sensor in the drill bit configured to detect radiation from the formation responsive to the radiation induced by the source. The drill bit may further include a circuit configured to process signals received from the sensor to estimate a property of the formation. | 10-20-2011 |
| 20110253446 | Apparatus and Methods for Estimating Tool Inclination Using Bit-Based Gamma Ray Sensors - A drill bit made according to one embodiment may include a bit body having a longitudinal axis, a plurality of gamma sensors placed in the bit body, at least two gamma ray sensors in the plurality of sensors are spaced-apart from each other along the longitudinal axis of the bit body, wherein each such sensor in the plurality of sensors is configured to detect gamma rays from the formation during drilling of the wellbore and to provide signals representative of the detected gamma rays, and a circuit configured to process at least partially the signals from each of the at least two gamma ray sensors for estimating an inclination of the bit body relative to the longitudinal axis. | 10-20-2011 |
| 20110253386 | ANCHOR SYSTEM AND METHOD FOR ANCHORING A TOOL WITH A POSITIONAL BIAS - An anchor system including a housing having a radial opening therein. A piston disposed within the housing and translatable therein. A slip in operable communication with the piston such that translation of the piston axially of the housing causes movement of the slip radially of the housing. The slip having a contact face that is nonparallel to an axis of the housing and nonparallel to a surface against which the slip is configured to be set. A method for anchoring a tool is included. | 10-20-2011 |
| 20110253373 | TRANSPORT AND ANALYSIS DEVICE FOR USE IN A BOREHOLE - A fluid conveyable device having an interior space receives a payload that may be transported along at least a section of a borehole. The device includes a access control member for conveying the payload between the interior and the exterior of the fluid conveyable device. | 10-20-2011 |
| 20110253365 | Methods for Removing Residual Polymer From a Hydraulic Fracture - Viscoelastic surfactant (VES) gelled aqueous fluids containing water, a VES in an amount effective to increase the viscosity of the water, and an internal breaker may be useful in removing a residual polymer from a hydraulic fracture. Optionally, a pseudo-crosslinker may be present to further improve the properties related to treatment fluid placement and polymer clean-up. A plurality of aliquots of VES gelled fluid may be injected into a subterranean formation. A stop-start interval may exist between the injection of each aliquot. The VES gelled fluid may contact at least some of the residual polymer in the hydraulic fracture, and a broken fluid is formed once the viscosity of the VES gelled fluid is reduced with the internal breaker. At least a portion of the residual polymer and a majority of the broken fluid may be removed. | 10-20-2011 |
| 20110253240 | APPARATUS AND METHOD FOR SELECTIVE FLOW CONTROL - A disk member selectively blocks flow across a fluid conduit formed in a body. The disk member may include a shaft having a longitudinal axis, a ring member disposed on the shaft, a sealing member disposed on the shaft, and a pressure applying surface in contact with the sealing member. The pressure applying surface may be non-orthogonal to the longitudinal axis. | 10-20-2011 |
| 20110252781 | Prevention, Actuation and Control of Deployment of Memory-Shape Polymer Foam-Based Expandables - Actuation and control of the deployment of a polymeric memory-shape material on a wellbore device on a downhole tool may be accomplished by treating a compacted or compressed polymeric memory-shape material with a deployment fluid to lower its T | 10-20-2011 |
| 20110252711 | METHOD OF PREPARING POLYCRYSTALLINE DIAMOND FROM DERIVATIZED NANODIAMOND - A method of forming a polycrystalline diamond comprises derivatizing a nanodiamond to form functional groups, and combining the derivatized nanodiamond with a microdiamond having an average particle size greater than that of the derivatized nanodiamond, and a metal solvent-catalyst. A polycrystalline diamond compact is prepared by adhering the polycrystalline diamond to a support, and an article such as a cutting tool may be prepared from the polycrystalline diamond compact. | 10-20-2011 |
| 20110251813 | METHOD AND APPARATUS FOR CLOCK SYNCHRONIZATION - A system for synchronizing components of a downhole system includes: a source assembly including a source clock; an electromagnetic source associated with the source assembly and configured to emit an electromagnetic signal into an earth formation at a transmission time; a receiver assembly including a receiver clock; an electromagnetic receiver associated with the receiver clock and configured to detect the electromagnetic signal; and a processor configured to identify a receipt time of the electromagnetic signal based on the receiver clock and adjust the receiver clock by comparing the transmission time to the receipt time. | 10-13-2011 |
| 20110251795 | DIELECTRIC SPECTROSCOPY FOR DOWNHOLE FLUID ANALYSIS DURING FORMATION TESTING - An apparatus for estimating a property of a downhole fluid, the apparatus includes: a carrier configured to be conveyed through a borehole penetrating the Earth; a downhole fluid extraction device disposed at the carrier and configured to extract the downhole fluid; and a dielectric spectrometer disposed at the carrier and configured to transmit electromagnetic energy into the extracted downhole fluid at a plurality of frequencies and to measure a plurality of responses to determine a permittivity of the extracted downhole fluid as a function of frequency; wherein the permittivity is used to estimate the property. | 10-13-2011 |
| 20110249266 | FLUID SAMPLING AND ANALYSIS DOWNHOLE USING MICROCONDUIT SYSTEM - An apparatus and method for estimating a parameter of interest in a downhole fluid using fluid testing module. The fluid testing module may include: a substrate comprising at least one microconduit, and a sensor. The sensor may be disposed within the at least one microconduit or external. The apparatus may include a fluid transporter for moving fluid within the microconduit. The method includes estimating a parameter of interest using the fluid testing module. | 10-13-2011 |
| 20110248717 | Oil-Based Mud Imager With a Line Source - A resistivity imaging device uses a line source in conjunction with an array of measure electrodes to reduce sensitivity to tool standoff when use in a borehole with oil-based mud. | 10-13-2011 |
| 20110248716 | CURRENT MEASUREMENT FOR WATER-BASED MUD GALVANIC ELECTRICAL IMAGING AND LATEROLOG TOOLS - An apparatus and method for estimating a resistivity property of an earth formation involving electric current injected into a wall of a borehole. The apparatus includes a first electrode, a second electrode, and a differential amplifier. The first electrode may be configured to impart an electric current into a borehole wall and be directly connected to a first input of the differential amplifier. The second electrode may be directly connected to a second input of the differential amplifier. The method may also include a summing circuit connected to the output of the differential amplifier. The method includes estimating a resistivity property using the output of the differential amplifier or the summing circuit. | 10-13-2011 |
| 20110247801 | SCREEN DEVICE AND DOWNHOLE SCREEN - A screen device includes a foam body having a passageway that extends longitudinally through the foam body, the foam body has an open cell structure such that at least two surfaces of the foam body are in fluidic communication with one another through the foam body. | 10-13-2011 |
| 20110247788 | SYSTEMS AND METHODS OF USING SUBSEA FRAMES AS A HEAT EXCHANGER IN SUBSEA BOOSTING SYSTEMS - Systems and methods of cooling a motor of an electrical submersible pump (ESP) assembly employed in an electrical submersible subsea booster pumping system, are provided. A supporting frame structure such as an ESP mounting skid or top end assembly of a caisson having structural members exposed to environmental seawater, is modified or designed to include fluid conduits within the structural members to establish lubricant pathways for lubricant to flow. A heated/hot lubricant line connects between a supporting structure lubricant inlet port and an ESP motor lubricant outlet port. A cooled lubricant line connects between a supporting structure lubricant outlet port and an ESP motor lubricant inlet port. A pump or other fluid moving device circulates lubricant from the ESP motor to the lubricant pathways within the supporting frame structure, whereby the seawater cools the lubricant contained therein, which is then circulated back into the motor to assisting cooling the motor. | 10-13-2011 |
| 20110247669 | POWER-GENERATING DEVICE AND METHOD OF MAKING - A power-generating device includes a thermoelectric material contoured to conform to at least a portion of a tubular and at least two conductors in operable communication with the thermoelectric material. | 10-13-2011 |
| 20110241337 | TUBULAR CONNECTION SYSTEM FACILITATING NONROTATING SIGNAL CONDUCTOR CONNECTION AND METHOD - A tubular arrangement including a tubular form having an interconnection configuration on each end with one or more signal conductors disposed within the tubular form. One or more axially operative connector bodies disposed at each end of the tubular form. A coupling at one end of the tubular form capable of bridging the tubular form to another tubular and a method for building a string is included. | 10-06-2011 |
| 20110240915 | Precipitation Prevention in Produced Water Containing Hydrate Inhibitors Injected Downhole - The precipitation of polymeric kinetic hydrate inhibitors (KHIs) in stored produced water is prevented or inhibited by incorporating a water immiscible solvent therein having a polarity index greater than about 3. The polymeric KHIs whose precipitation is inhibited or prevented include, but are not limited to, hyperbranched molecules, polyvinylcaprolactam, polyvinylpyrrolidone, and the like. Suitable water immiscible solvents include, but are not necessarily limited to, xylene, toluene, kerosene, mineral spirits, trimethylbenzene, cumene, heavy aromatic naphtha, ethylbenzene, polyethylbenzene, naphthalene, and mixtures thereof. | 10-06-2011 |
| 20110240367 | Milling Tool for Establishing Openings in Wellbore Obstructions - A milling tool which includes a nose cutting portion, a cutting section having a plurality of hardened cutters and a shaft portion. A wear pad is disposed on the cutting section and shaft portion. Upon the shaft portion, the wear pad extends radially outwardly to an engagement diameter that exceeds the maximum cutting diameter of the cutters. | 10-06-2011 |
| 20110240286 | ACTUATOR AND TUBULAR ACTUATOR - An actuator includes a tubular configured to longitudinally expand in response to radial expansion of at least a portion of the tubular. | 10-06-2011 |
| 20110239639 | ENERGY STORAGE DEVICE, ACTUATOR AND METHOD - An energy storage device a first member and a second member that is slidably engaged with the first member. There are at least two seals that slidably seal the first member to the second member and define a cavity therebetween that varies in volume with relative movement between the first member and the second member. The first member is biased toward the second member in a direction that resisted increases in volume of the cavity. | 10-06-2011 |
| 20110239545 | COMPOSITIONS FOR MANUFACTURING DOWNHOLE TOOLS AND DOWNHOLE TOOL PARTS - Methods, systems and compositions for manufacturing downhole tools and downhole tool parts for drilling subterranean material are disclosed. A model having an external peripheral shape of a downhole tool or tool part is fabricated. Mold material is applied to the external periphery of the model. The mold material is permitted to harden to form a mold about the model. The model is eliminated and a composite matrix material is cast within the mold to form a finished downhole tool or tool part. | 10-06-2011 |
| 20110236233 | Double Sealing Labyrinth Chamber for Use With a Downhole Electrical Submersible Pump - A labyrinth seal assembly for an electrical submersible pumping system that communicates downhole pressure to a pump motor while sealing wellbore fluids from the motor. The labyrinth seal assembly includes a chamber circumscribing a pump shaft, labyrinth tubes, upper and lower shaft seals, and inner and outer guide tubes coaxially circumscribing the shaft. One labyrinth tube has an end in fluid communication with the wellbore fluid and another has an end in fluid communication with the pump motor. The labyrinth tubes extend into the chamber from opposite directions and each have an opening distal from where they enter the chamber. A port is provided in the inner guide tube distal from the upper shaft seal, and a port in the outer guide tube is provided proximate the upper shaft seal. Thus a labyrinth path is provided between the upper shaft seal and the chamber. | 09-29-2011 |
| 20110232921 | SPOOLABLE DOWNHOLE CONTROL SYSTEM AND METHOD - A spoolable downhole control system including a length of one or more lines suitable for the downhole environment; and one or more components disposed in signal bearing communication with the one or more lines and along a length of the one or more lines, prior to the system being connected with a string, the components capable of actuating an operation. A method is included. | 09-29-2011 |
| 20110232915 | SYSTEM, ASSEMBLY AND METHOD FOR PORT CONTROL - A port control system including a group of port control assemblies at least one of which delaying passage of a plug and at least one of which preventing passage of a plug, each assembly of the group configured to shift a sleeve to open one or more ports responsive to contact with a same sized plug upon fluid pressure differential across the plug; and at least one second group of port control assemblies at least one of which delaying passage of a plug and at least one of which preventing passage of a plug, each assembly of the group configured to shift a sleeve to open one or more ports responsive to contact with a same sized plug upon fluid pressure differential across the plug. A method is included. | 09-29-2011 |
| 20110232901 | VARIABLE Tg SHAPE MEMORY POLYURETHANE FOR WELLBORE DEVICES - Wellbore devices for use in filtration, wellbore isolation, production control, lifecycle management and wellbore construction may include at least a first and a second shape-memory material each having a an altered geometric position and each an original geometric position. Each shape-memory material may include a polyurethane material held in the altered geometric run-in position at a temperature below glass transition temperature (T | 09-29-2011 |
| 20110232898 | ENGAGING DEVICE - An engaging device includes a body selectively slidably engagable about a first tubular runnable within a second tubular. The body is runnable past at least one profile on the second tubular in a first direction during a first running and is prevented from running past the at least one profile on subsequent runs subsequent to running by the at least one profile in a second direction. | 09-29-2011 |
| 20110232897 | DIVERTING TOOL - A diverting tool includes a ramp repositionable from a first position to a second position, a biasing member in operable communication with the ramp biasing the ramp toward the second position, and a tubular in operable communication with the ramp and the biasing member. The tubular prevents repositioning of the ramp when longitudinally overlapping with the ramp and allows repositioning of the ramp when not longitudinally overlapping with the ramp. | 09-29-2011 |
| 20110232765 | VALVING DEVICE AND METHOD - A valving device includes a body having a bore hole and a slot, the slot providing fluidic communication between the bore hole and an outside of the body. A cylinder is rotationally movably engaged within the bore hole and has an opening providing fluidic communication between an outer radial surface of the cylinder and a cavity therewithin. The valving device is configured to alter a portion of the slot in fluidic communication with the opening. | 09-29-2011 |
| 20110232548 | METHOD FOR IMPROVING THE EFFICIENCY OF HEAT TRANSFER IN A FURNACE - An additive having as components, at least two metal oxides selected from iron, manganese, cobalt, and copper oxide, may be added to a fuel to reduce the brightness of ash produced therewith. Further, the additive serves to increase the heat transfer efficiency of furnaces. | 09-29-2011 |
| 20110232115 | POSITION-SENSING DEVICE AND METHOD - A movable member position-sensing device includes a sensor and a biasing member in operable communication with both the sensor and a movable member configured to communicate a parameter to the sensor indicative of a position of the movable member. | 09-29-2011 |
| 20110232063 | DIVERTING SYSTEM AND METHOD OF RUNNING A TUBULAR - A method of running a first tubular within a second tubular includes running the first tubular into the second tubular past at least one lateral extending from the second tubular, running a diverting tool at the first tubular with the running of the first tubular, withdrawing the first tubular from the second tubular until an end of the first tubular is beyond a junction between the at least one lateral and the second tubular and, running the first tubular into the at least one lateral. | 09-29-2011 |
| 20110227580 | METHOD FOR MITIGATING LEAKAGE CURRENTS - An apparatus and method for reducing an electric current leakage in a logging tool, particularly relating to reducing electric current leakage by altering a phase difference between a biasing element and an electric current produced by a first power source. The apparatus may include one or more measure electrodes for imparting electric current into a formation, a current meter, at least one current return electrode, a controller, and a biasing element. The method includes adjusting a phase angle difference between the current leaving the measure electrode and a biasing signal applied to the biasing element from a second power source to reduce the current leakage of the apparatus. | 09-22-2011 |
| 20110226533 | PROGRESSIVE CUTTER SIZE AND SPACING IN CORE BIT INNER DIAMETER - A core drilling bit comprising a tubular body having an inner diameter, an outer diameter, and a leading face spanning from the inner diameter to the outer diameter; and a plurality of cutters mounted in the face; wherein cutters mounted along the inner diameter vary in configuration. For example, the cutters may be progressively larger along the inner diameter. The interior edges of the cutters along the inner diameter may be aligned in a circle with their outer edges being aligned in a spiral. The leading edges of the cutters along the inner diameter may be aligned at a constant depth, a progressively shallower depth, or a progressively deeper depth. The cutters may be spaced progressively wider or narrower along the inner diameter. | 09-22-2011 |
| 20110226481 | Apparatus and Method for Controlling Fluid Flow Between Formations and Wellbores - In one aspect, a passive flow control device for controlling flow of a fluid is provided, which device in one configuration include a longitudinal member configured to receive fluid radially along a selected length of the longitudinal member, the longitudinal member including flow restrictions configured to cause a pressure drop across the radial direction of the longitudinal member. In another aspect, a method of completing a wellbore is provided, which method in one embodiment may include providing a flow control device that includes a tubular with a first set of fluid flow passages and at least one member with a second set of fluid passages placed outside the tubular, wherein the first and second set of passages are offset along a longitudinal direction and the member is configured to receive a fluid along the radial direction; placing the flow control device at a selected location a wellbore; and allowing a fluid flow between the formation and the flow control device. | 09-22-2011 |
| 20110226466 | Electric Submersible Pump Service Truck - A self propelled or trailer frame is provided with a cradle on which the tool for subterranean use can be assembled preferably in a shop protected from the weather. The tool is transported to a well site and the truck is positioned for deployment. The cradle is on a sub-frame that can translate off the end of the truck bed to get an end of the tool closer to the wellhead. The truck has a hydraulic linkage to upend the nearest end to the wellhead to a point close to where a hook in a derrick that is over the wellhead can be attached to the tool for hoisting the tool up so as to lift it off the cradle with minimal side loading on the derrick as the tool lower end leaves the cradle. The tool can be an electric submersible pump and can be used for delivery as well as removal of the tool through a wellhead. | 09-22-2011 |
| 20110224906 | Method and Apparatus for Neutron Porosity Measurement Using a Neural Network - A method of estimating formation porosity using a neural network for neutron porosity tools. In the training stage, the near-to-far ratio, environmental variables, such as mineralogy, borehole size, standoff etc., are fed to the inputs and the neural network is trained for obtaining the related true porosity (the output). The trained neural network is implanted into tool's firmware for the real time porosity measurement, accounting for the environmental effects considered during training | 09-15-2011 |
| 20110224110 | Particles in Oil for Viscoelastic Surfactant Gelled Fluids - Fluids viscosified with viscoelastic surfactants (VESs) may have their fluid loss properties improved with the presence of at least one mineral oil in combination with at least one particulate fluid loss control agent that may be an alkaline earth metal oxides, alkaline earth metal hydroxides, transition metal oxides, transition metal hydroxides, and mixtures thereof. The mineral oil may initially be dispersed oil droplets in an internal, discontinuous phase of the fluid. In one non-limiting embodiment, the mineral oil is added to the fluid after it has been substantially gelled. The particulate fluid loss control agent may be added in any order relative to the VES and the mineral oil fluid loss control agent. The mineral oil may enhance the ability of a particulate fluid loss control agent to reduce fluid loss. The presence of the mineral oil may also eventually reduce the viscosity of the VES-gelled aqueous fluid. | 09-15-2011 |
| 20110222369 | Acoustic Transducer with a Liquid-Filled Porous Medium Backing and Methods of Making and Using Same - In one aspect, the disclosure provides an apparatus that includes an acoustic transducer, and a backing coupled to the transducer, wherein the backing includes solid grains with fluid between the grains. | 09-15-2011 |
| 20110221442 | TOROID GALVANIC AZIMUTHAL LWD TOOL - An apparatus and method for estimating a parameter of interest of an earth formation, particularly relating to borehole logging methods and apparatuses for estimating electrical resistivity properties using at least one transverse toroid. The apparatus may include one or more transmitters for introducing electrical current to the earth formation. The transverse toroid may detect responsive electric signals from the earth formation at one or more frequencies and provide data from one or more depths of investigation. Further multiple transverse toroids may be used for detecting electric signals from a larger azimuthal range than a single transverse toroid. The method includes steps for using the apparatus to obtain data that may be used to estimate the parameter of interest. | 09-15-2011 |
| 20110221138 | HIGH TEMPERATURE/HIGH PRESSURE SEAL - A sealing member including a body having a recess; one or more backups extending from the body and tapering over a length thereof; and a sealing element disposed in the recess, the element including one or more steps, each step being adjacent one of the one or more backups and on a surface of the sealing element intended to make contact with a target sealing surface. | 09-15-2011 |
| 20110220418 | OIL-BASED DRILLING FLUID RECOVERY AND REUSE - Methods and related systems are configured to treat a drilling fluid to cause water droplets to coalesce. One or more phases are thereafter separated from the treated drilling fluid. The oil and/or solids separated from the treated drilling fluid may be added to a base fluid. | 09-15-2011 |
| 20110220361 | Method and Materials for Proppant Fracturing With Telescoping Flow Conduit Technology - Acid-soluble plugs may be employed within telescoping devices to connect a reservoir face to a production liner without perforating. Such technology eliminates formation damage and debris removal associated with perforating, as well as reducing risk and time. The plugs may provide enough resistance to enable the telescoping devices to extend out from the production liner under hydraulic pressure. The plugs may then be dissolved in an acidic solution, which may also be used as the hydraulic extension fluid. After the plugs are substantially removed from the telescoping devices, the reservoir may be hydraulically fractured using standard fracturing processes. | 09-15-2011 |
| 20110220312 | DRILL BIT WITH PREFABRICATED CUTTINGS SPLITTER AND METHOD OF MAKING - A method of making a drill bit for drilling subterranean formations includes, forming a bit mold having at least one recess receptive of a distal portion of a prefabricated splitter, positioning the distal portion into one of the at least one recess, and filling the bit mold with at least one material. | 09-15-2011 |
| 20110218735 | Real-Time Lithology and Mineralogy Interpretation - Elemental analysis of an earth formation is obtained using measurements from a gamma ray logging tool. From only the elemental analysis and measurements of porosity, density and natural gamma rays, an estimate of the mineralogy of the formation is made treating the problem as one of minimizing a quadratic objective function subject to equality and/or inequality constraints. | 09-08-2011 |
| 20110214881 | FLOW CONTROL ARRANGEMENT AND METHOD - A flow control arrangement includes a housing defining one or more openings therein; a valve structure alignable and misalignable with the one or more openings in the housing; and one or more plugs, one each in each of the one or more openings, each plug being reducible by one or more of exposure to downhole fluids and applied dissolution fluids and method for carrying out a series of downhole operations. | 09-08-2011 |
| 20110214879 | TACTILE PRESSURE SENSING DEVICES AND METHODS FOR USING SAME - A device and related method for conducting a wellbore operation controls a tool by using at least one pressure estimated at a contact between a reaction surface and a contact face associated with the tool. The device may include a contact face and a sensor associated with the contact face. The sensor may be configured to estimate a pressure applied to the contact face. | 09-08-2011 |
| 20110214873 | EXPANDABLE MILL AND METHODS OF USE - In some embodiments, apparatus useful for cleaning at least part of the interior surface of a generally cylindrically-shaped member disposed in a subterranean well includes a housing and a plurality of retractable mill blades supported on the housing and movable from an initial retracted position to an extended position and thereafter to a final retracted position. | 09-08-2011 |
| 20110214854 | ATTACHMENT OF CONTROL LINES TO OUTSIDE OF TUBULAR - Disclosed is a downhole apparatus including a tubular and at least one line passage extending along an outer surface of the tubular. At least one end clamp is located at least one end of the line passage. The at least one end clamp includes a clamp body and at least one standoff located between the clamp body and the outer surface of the tubular defining a clamp protected space therebetween. Further disclosed is a downhole tubular system including a least two tubular apparatus, each tubular apparatus including at least one tubular and at least one line passage extending along an outer surface of the tubular. At least one end clamp is located at least one end of the line passage. The tubular system further includes at least one coupling clamp disposed at a coupling of the at least two tubular apparatus. | 09-08-2011 |
| 20110213555 | TIME DEPENDENT NEUTRON-GAMMA SPECTROSCOPY - An apparatus and method for estimating at least one parameter of interest of an earth formation including an estimation of the parameter of interest using a time-dependent ratio of information obtained from at least one neutron detector through the exposure of the earth formation to a radiation source, particularly a pulsed nuclear source. The apparatus includes a processor and storage subsystem with a program that, when executed, implements the method. Also, an apparatus and method for estimating at least one parameter of interest of an earth formation including an estimation of the parameter of interest using a first component and a second component of an information set obtained using a single radiation detector. | 09-01-2011 |
| 20110210474 | DRILL BIT WITH INTEGRAL CUTTINGS SPLITTER AND METHOD OF MAKING - A method of making a drill bit for drilling subterranean formations includes, forming a bit mold defining the drill bit to include at least one recess defining at least one splitter, and filling the bit mold with at least one material. | 09-01-2011 |
| 20110209874 | Tubing Pressure Insensitive Control System - A system isolates a control system for a downhole tool from the internal pressures in the tubing in which the tool is mounted. Opposed seals are used on a moving component in the tool so as to offset pressure induced forces regardless of the internal operating pressure of the tool. In a particular application to a subsurface safety valve the control system can be isolated from tubing pressure by offset seals between the passage and the flow tube or around exposed portions of the operating piston for the flow tube. | 09-01-2011 |
| 20110209867 | Mechanical Lock with Pressure Balanced Floating Piston - Parts that need to be retained against relative movement are held with at least one collet that is captured in a groove with sleeve that acts as a piston. The piston is exposed to tubing pressure on opposed ends to be in pressure balance despite variations of pressure in the tubing. When it is desired to allow relative part movement to actuate the tool, one of the ports to the piston is isolated from the other and pressure drives the piston in a downhole direction. This releases the collet and drives a sleeve in an opposite direction to actuate a tool. The parts can be optionally rotationally locked. | 09-01-2011 |
| 20110205841 | Acoustic Transducer with a Backing Containing Unidirectional Fibers and Methods of Making and Using Same - The disclosure, in one aspect, provides an apparatus that includes an acoustic transducer and a backing in contact with a side of the transducer. The backing includes substantially unidirectional fibers in a matrix of a material that has high shear wave acoustic attenuation. The fibers contact the side of the transducer at an angle configured to convert substantially all of the compressional waves that enter the backing for the transducer into shear waves, which shear waves are then attenuated by the matrix of the backing material. | 08-25-2011 |
| 20110203856 | COMPOSITE CUTTING/MILLING TOOL HAVING DIFFERING CUTTING ELEMENTS AND METHOD FOR MAKING THE SAME - A cutting/milling tool includes a tool body; a cutting end of the tool body; a first plurality of cutting elements having a substantially identical shape disposed at the cutting end of the tool body; and a second plurality of cutting elements having a different shape than the first plurality of cutting elements, the second plurality of cutting elements being substantially identical in shape to each other, the second plurality of cutting elements being interspersed with the first plurality of cutting elements at the cutting end of the tool body. | 08-25-2011 |
| 20110203850 | METHODS OF DRILLING USING DIFFERING TYPES OF CUTTING ELEMENTS - A drill bit includes a bit body having a face on which two different types of cutting elements are disposed, the first type being cutting elements suitable for drilling at least one subterranean formation and the second type being cutting elements suitable for drilling through a casing bit disposed at an end of a casing or liner string and cementing equipment or other components, if such are disposed within the casing or liner string, as well as cement inside as well as exterior to the casing or liner string. The second type of cutting elements exhibits a relatively greater exposure than the first type of cutting elements, so as to engage the interior of the casing bit and, if present, cementing equipment components and cement to drill therethrough, after which the second type of cutting elements quickly wears upon engagement with the subterranean formation material exterior to the casing bit, and the first type of cutting elements continues to drill the subterranean formation. The first type of cutting elements may comprise superabrasive cutting elements and the second type of cutting elements may comprise abrasive or superabrasive cutting elements comprising a plurality of configurations. | 08-25-2011 |
| 20110203849 | Expandable Reamers for Earth Boring Applications - An expandable reamer apparatus for drilling a subterranean formation includes a tubular body, one or more blades, each blade positionally coupled to a sloped track of the tubular body, a push sleeve and a drilling fluid flow path extending through an inner bore of the tubular body for conducting drilling fluid therethrough. Each of the one or more blades includes at least one cutting element configured to remove material from a subterranean formation during reaming. The push sleeve is disposed in the inner bore of the tubular body and coupled to each of the one or more blades so as effect axial movement thereof along the track to an extended position responsive to exposure to a force or pressure of drilling fluid in the flow path of the inner bore. The apparatus is provided with a caliper for measuring the actual borehole size. Remedial action may be taken based on a comparison of the actual borehole size and the intended size. | 08-25-2011 |
| 20110203848 | Reverse Circulation Apparatus and Methods of Using Same - In one aspect, an apparatus for drilling a wellbore into an earth formation is disclosed, which apparatus, according to one embodiment, may include a drill string configured to be conveyed into a wellbore, wherein an annulus is formed between the drill string and a wellbore wall, a first flow device configured to circulate a first fluid from an annulus to a bore of the drill string, and a second flow device positioned downhole of the first flow device, the second flow device configured to circulate a second fluid from the bore of the drill string to the annulus. | 08-25-2011 |
| 20110203805 | Valving Device and Method of Valving - A valving device includes a tubular having a wall including a passageway therethrough fluidically connecting an outside of the tubular with an inside of the tubular, a plug movable relative to the wall between a first position wherein the plug substantially prevents fluid flow through the passageway and a second position wherein the plug permits fluid flow through the passageway. At least one force failing member configured to maintain the plug in the first position until attainment of a selected force acts upon the plug, and movement of the plug is in a direction substantially parallel to a longitudinal axis of the tubular yet non-coaxial with the tubular. | 08-25-2011 |
| 20110200825 | NANO-COATINGS FOR ARTICLES - A composite includes a substrate, a binder layer disposed on a surface of the substrate; and a nanofiller layer comprising nanographene and disposed on a surface of the binder layer opposite the substrate. In addition, a nano-coating layer for coating a substrate includes multiple alternating layers of the binder layer and the nanofiller layer. Articles coated with the nano-coating layer prepared from alternating layers of nanofiller layer and binder layer have improved barrier properties, and may be used in down-hole applications. | 08-18-2011 |
| 20110198489 | LITHOLOGY PAIR RATIO: A RATIO-BASED LITHOLOGY INDICATOR USING PAIR PRODUCTION - The present disclosure relates to borehole logging methods and apparatuses for estimating formation properties using nuclear radiation, particularly an apparatus and method for estimating a formation lithology parameter. The method may include using gamma ray count or count rate information to estimate a formation lithology parameter that may be one of, but not limited to: Z | 08-18-2011 |
| 20110198128 | EARTH-BORING TOOLS INCLUDING ABRASIVE CUTTING STRUCTURES AND RELATED METHODS - A drill bit includes a bit body having a face on which two different types of cutters are disposed, the first type being cutting elements suitable for drilling at least one subterranean formation and the second type being at least one of an abrasive cutting structure and an abrasive cutting element suitable for drilling through a casing shoe, reamer shoe, casing bit, casing or liner string and cementing equipment or other components, as well as cement. Methods of forming earth-boring tools include disposing at least one abrasive cutting structure or element on the earth-boring tool. Methods of drilling with earth-boring tools including drilling with at least one abrasive cutting structure or element. | 08-18-2011 |
| 20110198093 | ACOUSTIC DOWNHOLE TOOL WITH RUBBER BOOT PROTECTED BY EXPANDABLE SLEEVE - A downhole tool having a body, a transducer within the body, and an opening formed through a sidewall of the body. The opening provides a port through which the transducer can communicate from within the body. An elastomeric boot in the body covers the opening and is a barrier that prevents fluid ingress into the downhole tool. An expandable sleeve envelopes the elastomeric boot and provides support that limits bulging of the elastomeric boot from within the body through adjacent openings in the body. An example sleeve is made from elongated members woven into a tubular. | 08-18-2011 |
| 20110198077 | APPARATUS AND METHOD FOR VALVE ACTUATION - An apparatus for controlling fluid flow that includes a chamber having a first valve and a second valve; a sensor that senses a pressure parameter associated with the chamber; and a controller programmed to operate the first valve and the second valve in response to the sensed pressure parameter may be used to control for flow and to obtain data relating to a formation and/or formation fluid. | 08-18-2011 |
| 20110196636 | MEASUREMENT METHOD FOR A COMPONENT OF THE GRAVITY VECTOR - The present disclosure relates to methods and apparatuses for calibrating a sensor, particularly a gravimeter, which involves positioning the sensor in at least three different orientations and calibrating the sensor using a linear model and the sensor outputs from the at least three different orientations. The method may include applying an external force to the sensor. The apparatus includes a processor and storage subsystem with a program that, when executed, implements the method. | 08-11-2011 |
| 20110195938 | PROCESS FOR PREVENTING OR MITIGATING BIOFOULING - Biofouling may be prevented or at least mitigated by employing a cinnamaldehyde additive to augment the affect of the conventional biocide. Exemplary cinnamaldehyde additives include, but are not limited to, cinnamaldehyde, cinnamic acid and cinnamyl alcohol. A cinnamaldehyde additive by itself, in some applications, may also inhibit biofouling. | 08-11-2011 |
| 20110194949 | Compensating Mechanical Seal For Use With A Downhole Electrical Submersible Pump - An electrical submersible pumping system having a pump, a motor, a shaft connecting the pump and motor, and a mechanical seal assembly on the shaft. The mechanical seal assembly includes a sleeve circumscribing the shaft that is axially movable with respect to the shaft. The shaft is retained within a guide mount, an inner circumference of the guide mount extends radially outward to define a shoulder. An annular seat is disposed on the shoulder. One end of a resilient retention assembly couples on the outer surface of the sleeve with its other end compressively urged against the seat. A resilient member is compressively mounted on one end to the sleeve and on another end to the shaft at a location past the end of the sleeve distal from the seat. | 08-11-2011 |
| 20110194926 | Submersible Pump for Operation In Sandy Environments, Diffuser Assembly, And Related Methods - Submersible pumps, diffuser assemblies, and related methods for pumping a fluid having a substantial sand content, are provided. A diffuser assembly for a submersible pump can include anti-swirl ribs forming sand dams positioned on an upper surface of the diffuser bowl floor at an acute angle to guide trapped between the bottom shroud of an impeller and the diffuser bowl to the inner surface of the diffuser bowl outer wall and back into the production fluid stream. The diffuser assembly can also include sand jump ramps each separately positioned adjacent the outer peripheral surface of one of the sand dams and positioned adjacent a separate portion of the inner surface of the diffuser bowl outer wall to further enhance deflection of sand back into the production fluid stream. | 08-11-2011 |
| 20110194817 | SPOOLABLE SIGNAL CONDUCTION AND CONNECTION LINE AND METHOD - A spoolable signal conduction and connection line for a downhole environment including a length of signal conduction and connection line suitable for the downhole environment; and one or more connectors depending from the line along a length of the line, the connectors capable of making a signal bearing connection for the downhole environment. | 08-11-2011 |
| 20110192653 | Cutting Element and Method of Orienting - A cutting element includes, a gilmoid with a plurality of cutting edges thereon, and at least one support extending from the gilmoid, the at least one support and at least one of the plurality of cutting edges are simultaneously contactable with a surface upon which the cutting element is restable. | 08-11-2011 |
| 20110192651 | SHAPED CUTTING ELEMENTS ON DRILL BITS AND OTHER EARTH-BORING TOOLS, AND METHODS OF FORMING SAME - Earth-boring tools include a body, one or more blades projecting outwardly from the body, and cutting elements carried by the blade. The cutting elements include at least one shearing cutting element and at least one gouging cutting element. Methods of forming an earth-boring tool include mounting a shearing cutting element comprising an at least substantially planar cutting face to a body of an earth-boring tool, and mounting a gouging cutting element comprising a non-planar cutting face to the body of the earth-boring tool. The gouging cutting element may be positioned on the body of the earth-boring tool such that the gouging cutting element will gouge formation material within a kerf cut in the formation material by the shearing cutting element, or between kerfs cut in the formation material by a plurality of shearing cutting elements. | 08-11-2011 |
| 20110192589 | OPTIMIZED MACHINING PROCESS FOR CUTTING TUBULARS DOWNHOLE - The tubular cutting tool for severing downhole tubulars, the tool having a drive system, a pivoting system, a cutting head, a cutting member, and a lubricant delivery system. Cutting may be accomplished by rotatingly actuating the cutting head with an associated motor and extending the cutting member away from the cutting head. The lubricant delivery system lubricates the respective contacting surfaces of the cutting member and the tubular and is actuated when the cutting member extends from the cutting head. | 08-11-2011 |
| 20110192480 | Valving System and Method of Selectively Halting Injection of Chemicals - A valving system includes, a plurality of flow control valves, and a plurality of chemical control valves in operable communication with a plurality of the plurality of flow control valves such that each of the plurality of chemical control valves is actuated between closed and open positions when the flow control valve it is in operable communication with is actuated between closed or open positions | 08-11-2011 |
| 20110192222 | PIEZOELECTRIC ACTUATOR FOR DOWNHOLE APPLICATIONS - A transducer for use with a downhole tool, where the transducer includes concentric piezoelectric elements coupled with a member that extends from the top surface of one element to the bottom surface of another element. The elements expand and contract to vibrate by applying electrical potential to the elements. The element having the member on its bottom surface expands and contracts with applied electrical potential and also is urged upward, by the coupling member, an amount equal to the vertical displacement of the element having the member on its top surface. Thus the element having the member on its bottom surface is vertically displaced by an amount substantially equal to the expansion of the elements. | 08-11-2011 |
| 20110191031 | DEVICE AND METHOD FOR DISCRETE DISTRIBUTED OPTICAL FIBER PRESSURE SENSING - An apparatus for estimating at least one parameter includes: a deformable member configured to deform in response to the at least one parameter; a housing surrounding at least a portion of an external surface of the deformable member to define an isolated region around the portion and an isolated surface of the deformable member; and at least one optical fiber sensor disposed on the isolated surface and held in an operable relationship with the isolated surface, the at least one optical fiber sensor configured to generate a signal in response to a deformation of the deformable member. | 08-04-2011 |
| 20110191030 | APPARATUS AND ALGORITHM FOR MEASURING FORMATION BULK DENSITY - The present disclosure relates to borehole logging methods and apparatuses for estimating formation properties using nuclear radiation, particularly an apparatus and method for estimating bulk density of a formation. The method may include using gamma ray count rate information to model bulk density. The method may include using time-dependent ratios with a pulsed radiation source. The method may also include dividing gamma ray information by time and/or by energy window. The apparatus includes a processor and storage subsystem with a program that, when executed, implements the method. | 08-04-2011 |
| 20110187372 | Acoustic Excitation With NMR Pulse - NMR measurements are made along with acoustic measurements using one tool. The antenna of the NMR sensor is used to create acoustic signals. Interference between the acoustic and NMR measurements is avoided due to the frequency difference, and by having the acoustic excitation during a wait time of the NMR pulse sequence. | 08-04-2011 |
| 20110187062 | COLLET SYSTEM - A collet system having greater axial load capability and debris protection includes a sleeve and a collet. The collet is disposed in a debris protected position relative to the sleeve and is radially adjacent and axially supported by sleeve. | 08-04-2011 |
