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AUTOMATIC CONTROL

Subclass of:

175 - Boring or penetrating the earth

Patent class list (only not empty are listed)

Deeper subclasses:

Class / Patent application numberDescriptionNumber of patent applications / Date published
175025000 Of fluid pressure below ground 25
175026000 Of boring means including a below-ground drive prime mover 23
175027000 Of advance or applied tool weight 19
175038000 In response to drilling fluid circulation 7
Entries
DocumentTitleDate
20130025937Systems and Methods for Continuous and Near Continuous Drilling - The present disclosure provides drilling and tripping equipment packages and control schemes and methods using two or more lifting systems that operate simultaneously and continuously in a synchronized manner such that the feeding of tubular into or out of a well bore is achieved with continuous or near continuous movement, without the need for periodic interruptions. The drilling and tripping equipment packages and control schemes are also able to rotate the tubular in the well bore with continuous speed and torque sufficient for both drilling and back-reaming operations. The drilling and tripping equipment package and control scheme is additionally able to circulate drilling fluid into the internal bore of the tubular with sufficient pressure and flow to facilitate both drilling and back-reaming operations, with minimal interruption to circulation.01-31-2013
20090205868Devices and Methods for Horizontal Directional Drilling with a Boring Tool Library - Various embodiments are directed to a method and apparatus for horizontal directional drilling with a tool library. Various methods include storing a plurality of operational tool profiles in memory, the operational tool profiles of the plurality respectively associated with a plurality of boring tools attachable to a drill string for HHD and each of the operational tool profiles of the plurality including operating parameters for the boring tool of the plurality with which the operational profile is associated, and selectively displaying the operational tool profiles on a display screen based on user input.08-20-2009
20100065329DOWNHOLE TELEMETRY APPARATUS AND METHOD - A telemetry tool is placed in a drill string adjacent to a drill bit. The telemetry tool includes position and direction sensors, a power supply, a signal receiver and a signal emitter. An external base unit, may be mounted on the surface at some distance from the wellhead. The external base unit generates, and transmits into the geological formation, a carrier signal. The carrier signal may be a DC carrier signal, and it may be a variable DC signal.03-18-2010
20090090554CLOSED-LOOP PHYSICAL CALIPER MEASUREMENTS AND DIRECTIONAL DRILLING METHOD - Aspects of this invention include a downhole tool and method for making a physical caliper measurement of a subterranean borehole. The tool is configured to make the physical borehole caliper measurement only when the measured pressure in each of three or more outwardly extendable blades is greater than a predetermined threshold pressure. Blade positions are measured and the borehole caliper calculated only when the pressure in each of the blades exceeds the threshold. Exemplary embodiments of the invention enable physical caliper measurements to be made with increased accuracy with each of the blades making firm contact with the borehole wall. Methods in accordance with the invention are especially well suited for use in directional drilling applications in that they tend to enable accurate caliper measurements to be made without repositioning the steering tool in the borehole.04-09-2009
20100025108METHOD FOR DRILLING ROCK - The invention relates to a method for drilling rock, wherein holes to be drilled are determined prior to drilling as a drilling pattern wherein for each hole, a starting place, direction and hole depth for drilling are determined with respect to the rock to be drilled. In the invention, hole-type-specific drilling parameters are determined for the holes to be drilled, and during a drilling phase a drill rig automatically selects drilling parameters for each hole to be drilled on the basis of the hole type of the particular hole.02-04-2010
20130037324DEVICE AND METHOD FOR HANDLING DRILL STRING COMPONENTS AND DRILL RIG - A device for handling drill string components for a drill rig. A slide is arranged displaceable on a longitudinal guide. A grip unit is swingable between a first position for receiving and delivering of drill string components beside the drill rig and a second position for assembling and disassembling of drill string components in the drill rig. The grip unit includes a rotator unit for rotation of a gripped drill string component. A rotational actuator supported by the slide has a rotational axis forming an angle with the length guide. A swing unit includes a first link portion that is connected to the rotational axis. A second link portion is connected to the grip unit and a swing joint portion.02-14-2013
20130032401METHODS AND SYSTEMS FOR DRILLING - A method of steering a drill bit to form an opening in a subsurface formation, comprises a) determining a distance from design of a well, and b) determining an angle offset from design of the well wherein angle offset from design is the difference between the inclination and azimuth of the hole and the inclination and azimuth of plan, c) wherein at least one distance from design and at least one angle offset from design are determined in real time based, at least in part, on a position of the hole at the last survey, a position at a projected current location of the bit, and a projected position of the bit.02-07-2013
20100108382Shape Memory Alloy Actuated Steerable Drilling Tool - A rotary steerable apparatus is provided having an actuator for pushing the bit or pointing the bit that includes a shape memory alloy. An elongated form of the alloy, such as a wire or rod, is employed in a mechanism that applies force in a direction transverse to the wellbore in response to a change in length of the alloy. Temperature of the alloy is controlled to change shape and produce the desired force on pads for operating the apparatus. The apparatus may be used with downhole power generation and control electronics to steer a bit, either in response to signals from the surface or from downhole instruments.05-06-2010
20100108381METHOD AND DEVICE FOR CONTROLLING AT LEAST ONE DRILLING PARAMETER FOR ROCK DRILLING - The invention relates to a method and a device for controlling drilling parameters when drilling into rock with a drilling machine. During drilling, an impulse-generating device using an impact means is arranged to induce shock waves in a tool held against the rock, the said impulse-generating device being displaceable in the drilling direction relative to a supporting means, wherein a pressure level of a shock-wave-generating pressure is controlled during the drilling operation. A drilling speed of the said drilling is determined by determining a movement of the impulse-generating device with respect to the said supporting means, and the said shock-wave-generating pressure is controlled as a function of the said drilling speed that has been determined.05-06-2010
20100108380METHODS AND APPARATUSES FOR ESTIMATING DRILL BIT CUTTING EFFECTIVENESS - A drill bit for drilling a subterranean formation includes a plurality of cutting elements and a shank extending from a bit body. A set of accelerometers disposed in the drill bit include a radial accelerometer and a tangential accelerometer. An annular chamber is formed within the shank. A data evaluation module is disposed in the annular chamber and includes a processor, a memory, and a communication port. The data evaluation module is configured for performing a bit acceleration analysis. The analysis includes sampling acceleration information from the radial accelerometer and the tangential accelerometer over an analysis period and storing the acceleration information in the memory to generate an acceleration history. The acceleration history is analyzed to determine a cutting effectiveness of the cutting elements responsive to changes in the acceleration history. The cutting effectiveness is reported through the communication port.05-06-2010
20130133948USE OF DOWNHOLE PRESSURE MEASUREMENTS WHILE DRILLING TO DETECT AND MITIGATE INFLUXES - A well drilling system can include a hydraulics model which determines a modeled fluid friction pressure and a calibration factor applied to the modeled friction pressure, and a flow control device which is automatically controlled in response to a change in the calibration factor. A well drilling method can include drilling a wellbore, a fluid circulating through the wellbore during the drilling, determining a calibration factor which is applied to a modeled fluid friction pressure, and controlling the drilling based at least in part on a change in the calibration factor.05-30-2013
20090044980SYSTEM AND METHOD FOR DIRECTIONAL DRILLING A BOREHOLE WITH A ROTARY DRILLING SYSTEM - This disclosure relates in general to a method and a system for directionally drilling a borehole with a rotary drilling system. More specifically, but not by way of limitation, methods and system provide for controlling motion of the rotary drilling system in the borehole when a side force is applied to the drilling system to bias or focus the motion so that the drilling system directionally drills the borehole through an earth formation. In certain aspects, side cutting of a sidewall of the borehole by a drill bit under an applied side force is controlled by a geostationary element to provide for directional side cutting and, as a result, directional drilling of the borehole through the earth formation. In other aspects, a non-concentrically coupled gauge pad assembly may rotate with the drilling system and bias or focus the applied side force.02-19-2009
20090044979DRILL BIT GAUGE PAD CONTROL - The present specification describes a drill bit for drilling a cavity. The drill bit may include a chassis, a plurality of gauge pad sets, and at least one gauge pad structure. The chassis may be configured to rotate about an axis. The plurality of gauge pad sets may each include at least one gauge pad. The at least one gauge pad structure may moveably couple at least one of the gauge pads of at least one of the plurality of gauge pad sets with the chassis.02-19-2009
20090044978STOCHASTIC BIT NOISE CONTROL - A drill bit direction system and method is disclosed that modifies or biases the stochastic movement of the drill bit and/or stochastic interactions between the drill bit and an inner-wall of a borehole being drilled by a drilling system to change the direction of drilling of the drilling system. The direction of the drill bit is monitored to determine if the direction happens to align in some way with a preferred direction. If the direction isn't close enough to a preferred direction, a biasing mechanism modifies the stochastic movement in an attempt to modify the direction closer to the preferred direction. Any of a number of biasing mechanisms can be used. Some embodiments can resort to conventional steering mechanisms to supplement the biasing mechanism.02-19-2009
20090044976Arrangement and method for controlling drilling parameters - The present invention relates to a method and an arrangement for controlling drilling parameters when rock drilling. The arrangement is arranged such that a drill tool is connectable to a drilling machine by means of one or more drill string components, wherein the arrangement comprises means for rotating the drill tool during rock drilling and for providing a tightening torque for tightening joints between one or more from the group: drill tool, one or more drill string components and drilling machine. The arrangement is arranged to control the rotational speed of the drill tool based on available tightening torque.02-19-2009
20130087387METHOD FOR MANAGING DRILLING PIPES, DRILLING TOOLS, WELL TUBING, AND THE LIKE IN GROUND DRILLING - A method for managing drilling rods, drilling tools, well—tubing and the like for ground drilling, particularly for exploring deposits of fossil fuels or geothermal reservoirs. An electronic data processing system stores information regarding the inventory and the present storage location of parts to be inserted into the well, such as drilling rods, drilling pipes, lining tubing, intermediate parts, drill bits, and the like, with additional information being saved in the computing system regarding the installation position and/or installation sequence of all parts inserted into the well so that the computing system can indicate to a user when and from where which part shall be fed to the well hole—supply system and/or to what location which part shall be returned to for storage when it must be removed from the well, and/or the computing system controls an automatic storage, supply, and restorage device.04-11-2013
20130087385METHOD FOR DETECTING AND MITIGATING DRILLING INEFFICIENCIES - Present embodiments are directed to a drilling system and method for evaluating energy consumption to determine the onset of drilling issues and identify mitigation strategies for more efficient drilling. The drilling system receives drilling parameter values and a drilling performance value from sensors located on a drilling rig, and calculates an energy value based on the drilling parameter values and drilling performance value. The drilling system determines a deviation of the calculated energy value from a desired energy value and identifies one drilling parameter that significantly correlates with the deviation. Further, the drilling system determines an adjustment to the one drilling parameter that, when applied, causes the calculated energy value to approach the desired energy value. The drilling system then indicates the desired adjustment to the drilling operator so that appropriate actions may be taken to mitigate the drilling issue.04-11-2013
20130087386EXPANDABLE 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.04-11-2013
20100006337APPARATUS FOR DRILLING MACHINE ALIGNMENT - Apparatus for controlling a drilling machine to drill a series of parallel holes, where the drilling machine comprises a carrier vehicle movable over the terrain, a boom mounted on the vehicle for movement side to side on the vehicle, a mast carried on an outer end of the boom and movable about two separate axes relative to the end of the boom, includes a first sensor responsive to an azimuth angle relative to the earth's magnetic north direction and two additional sensors, which are used to measure the two inclinations relative to two vertical planes transverse to and longitudinal of the boom. The sensor system is mounted in an housing on the mast close to the longitudinal center of the mast and offset to the side. A controller calculates from the sensed values of the azimuth and inclination angles required target angles for the mast for drilling each hole.01-14-2010
20090173538Tripping Indicator For MWD Systems - A method for surveying a formation includes conveying a survey instrument into the wellbore; measuring one or more parameters of interest relating to a wellbore tubular in the wellbore; and operating the survey instrument after the measured parameter of interest indicates that the wellbore tubular is being tripped out of the wellbore.07-09-2009
20090095526Method and Apparatus for Managing Rod Changes in Horizontal Directional Drill - This disclosure concerns methods and apparatuses for managing drill rods in horizontal direction drilling, among other things. Various embodiments concern a horizontal directional drilling machine comprising a rack frame, a carriage longitudinally movable along the rack frame, a mechanical arrangement coupled to the carriage and the rack frame, the mechanical arrangement controlling relative movement between the carriage and the rack frame, a thrust motor coupled to the carriage such that thrust or pullback output from the thrust motor moves the carriage relative to the rack frame, a gearbox mounted on the carriage, the gearbox longitudinally translatable along the carriage, the gearbox comprising a rotation motor, a spindle attached to the gearbox, the spindle rotatable by the rotation motor and having a distal end coupling, the distal end coupling configured to attach to the proximal end of a drill rod, a vise assembly mounted on the rack frame, the vise assembly comprising a proximal vise linearly and rotationally moveable with respect to the rack frame, the proximal vise comprising a clamping mechanism configured to secure the drill rod by clamping onto the drill rod, a rotation encoder sensor configured to output a rotation encoder signal indicative of rotation of the spindle, a rack encoder sensor configured to output a rack encoder signal indicative of relative movement between the carriage and the rack frame, a float sensor configured to output a float signal indicative of relative movement between the carriage and the gearbox, and control circuitry comprising a processor and memory, the processor configured to execute program instructions stored in memory, processor execution of the stored program instructions causing the control circuitry to determine the relative positioning of the gearbox relative to the proximal vise based on the rack encoder signal and the float signal, position the drill rod within the proximal vise using the determined relative positioning of the gearbox and the thrust motor, determine a state of threaded coupling between the drill rod and a drill string based on the rotation encoder signal and the float signal, and rotate the drill rod using the spindle rotated by the rotation motor based on the determined state of the threaded coupling.04-16-2009
20130062122HIGH TEMPERATURE DRILLING WITH LOWER TEMPERATURE RATED TOOLS - A method of maintaining a desired temperature at a location in a well can include adjusting fluid circulation parameters, thereby reducing a difference between an actual temperature at the location and the desired temperature. A well system can include at least one sensor, an output of the sensor being used for determining a temperature at a location in a well, and a hydraulics model which determines a desired change in fluid circulation through the well, in response to the temperature at the location being different from a desired temperature at the location. Another method of maintaining a desired temperature at a location in a well can include adjusting a density, solids content and/or flow rate of a fluid circulated through the well, thereby urging a temperature at the location toward the desired temperature.03-14-2013
20090236145ANALYSIS REFRACTED ACOUSTIC WAVES MEASURED IN A BOREHOLE - Methods and related systems are described for measuring and analyzing refracted acoustic energy. A plurality of receivers mounted are on a downhole tool, and are arranged and adapted to receive refracted acoustic energy from a downhole formation. Measurements of refracted acoustic energy is analyzed such that information relating to an azimuthal direction relative to the downhole tool of an interface within the downhole formation can be estimated. The receivers can be mounted on a drill collar as part of a LWD tool and steering of the drilling trajectory can be based in part on the estimated formation information.09-24-2009
20130161095METHOD AND SYSTEM FOR CONTROLLING A POWER SOURCE AT A ROCK DRILLING APPARATUS AND ROCK DRILLING APPARATUS - The present invention relates to a method for controlling a power source (06-27-2013
20090101410AC POWERED SERVICE RIG - An electrically-powered service rig utilizes an engine-driven generator to power a propulsion system, a drawworks system and a sandline system, all mounted on a single mobile platform. The rig utilizes lightweight permanent magnet motors to enable integration of the systems onto a single mobile platform which meets transport regulations. The rig's power plant is capable of powering other on-site equipment such as mud pump motors through use of umbilicals connected to the engine-driven generator.04-23-2009
20110278064ELECTRONICALLY ACTIVATED UNDERREAMER AND CALLIPER TOOL - An electronically activated tool (11-17-2011
20110290559SURFACE REAL-TIME PROCESSING OF DOWNHOLE DATA - A method and apparatus for controlling oil well drilling equipment is disclosed. One or more sensors are distributed in the oil well drilling equipment. Each sensor produces a signal. A surface processor coupled to the one or more sensors via a high speed communications medium receives the signals from the one or more sensors via the high speed communications medium. The surface processor is situated on or near the earth's surface. The surface processor includes a program to process the received signals and to produce one or more control signals. The system includes one or more controllable elements distributed in the oil well drilling equipment. The one or more controllable elements respond to the one or more control signals.12-01-2011
20110308858FLEX JOINT FOR DOWNHOLE DRILLING APPLICATIONS - A technique facilitates drilling applications by providing a unique flex joint. In one embodiment, the flex joint has an adjustable bending stiffness while being much more compact than conventional flex joints. The flex joint also may be designed to de-couple bending moments from the tool joints and, in some applications, can operate as an active vibration and shock control sub by incorporating suitable sensors and a hydraulic actuator system. The design also enables incorporation of other features, such as electrical insulation features disposed above and/or below the flex joint. In some applications, the flex joint also may have an electrical feed through.12-22-2011
20110284288APPARATUS AND PROCESS FOR WELLBORE CHARACTERIZATION - An apparatus and a process for wellbore characterization are disclosed, including: separating, in a separation vessel, drilling mud from gas produced during drilling of a wellbore; transporting the separated produced gas from the separation vessel to a downstream process; and measuring at least one of a temperature, a pressure, a mass flow rate, and a volumetric flow rate of the separated produced gas during transport using one or more sensors. Properties of the gas separated from the mud may be used to determine characteristics of a wellbore.11-24-2011
20100044107DESIGNING DRILLING PATTERN FOR EXCAVATING ROCK CAVERN - The invention relates to a method and a software product for designing a drilling pattern for excavating a rock cavern. The invention further relates to a rock-drilling rig, in whose control unit the software product and the method are executable. During designing of the drilling pattern, drill hole bottom locations are placed at a blast plane at the bottom of a round. A drilling pattern design program determines the missing properties of the drill holes viewed from the bottom of the round towards a navigation plane. The program is able to determine a starting location for a drill hole based on the location and the direction of the bottom. The program also performs blasting calculation on the drill holes positioned.02-25-2010
20090044977SYSTEM AND METHOD FOR CONTROLLING A DRILLING SYSTEM FOR DRILLING A BOREHOLE IN AN EARTH FORMATION - This disclosure relates in general to a method and system for controlling a drilling system for drilling a borehole in an earth formation. More specifically, but not by way of limitation, embodiments of the present invention provide systems and methods for controlling dynamic interactions between the drilling system for drilling the borehole and an inner surface of the borehole being drilled to steer the drilling system to directionally drill the borehole. In another embodiment of the present invention, data regarding the functioning of the drilling system as it drills the borehole may be sensed and interactions between the drilling system for drilling the borehole and an inner surface of the borehole may be controlled in response to the sensed data to control the drilling system as the borehole is being drilled.02-19-2009
20100078215DESIGNING DRILLING PATTERN FOR EXCAVATING ROCK CAVERN - A method and a storage device including a software product for designing a drilling pattern, and further a rock drilling rig, in the control unit of which a software product may be executed for designing the drilling pattern. For a group of holes of the drilling pattern, at least one master hole can be determined which comprises at least one dominating factor. The properties of at least one other drill hole are determined on the basis of the dominating properties of the master hole. A master hole may be a hole location master, hole depth master or hole direction master.04-01-2010
20090188717METHOD AND A DEVICE FOR DIRECTIONAL CONTROL OF A ROCK DRILLING MACHINE - A method for the directional control of a rock-drilling ma-chine, the drilling unit (07-30-2009
20090152005OILFIELD WELL PLANNING AND OPERATION - The invention relates to a system for performing a drilling operation for an oilfield. The system includes a drilling system for advancing a drilling tool into a subterranean formation, a repository storing multiple survey factors for at least one wellsite of the oilfield and multiple drilling factors corresponding to at least one section of a planned trajectory of the at least one wellsite, and a processor and memory storing instructions when executed by the processor. The instructions include functionality to configure a drilling model for each of the at least one wellsite based on the plurality of survey factors and the plurality of drilling factors and selectively adjust the drilling model with respect to a plurality of drilling scenarios to generate an optimal drilling plan.06-18-2009
20090090553Command and Control for Boring System - A system having a number of land units [04-09-2009
20110155462SYSTEM AND METHOD FOR AUTOMATING EXPLORATION OR PRODUCTION OF SUBTERRANEAN RESOURCE - A method and system for automating exploration and production of subterranean resources, using data collected from exploration and production activities, including drilling rig data and/or the like is described. The method and system include the use of a knowledge representation containing representation of uncertainty in the exploration and production operations.06-30-2011
20100084191COMBINING BELIEF NETWORKS TO GENERATE EXPECTED OUTCOMES - A method is described for determining an oilfield parameter for a drilling operation in an oilfield, the oilfield having a well site with a drilling tool advanced into a subterranean formation with geological structures and reservoirs therein. A first set of decision factors and a second set of decision factors about the drilling operation are identified. Each of the first set of decision factors is contained within a first set of nodes, and each of the second set of decision factors is contained within a second set of nodes. Both the first set of nodes and the second set of nodes contain a set of common nodes, which are common to both the first and second sets. The first set of nodes is associated to create a first belief network and the second set of nodes is associated to create a second belief network. Then, the set of common nodes of the first belief network is associated with the set of common nodes of the second belief network to form a multinet belief network. Oilfield parameter can be generated from the multinet belief network.04-08-2010
20080210467USE OF CUTTINGS TANKS FOR RECYCLING OIL BASED MUD AND WATER - A system for recycling a drilling fluid that includes a first cuttings storage vessel, a second cuttings storage vessel, and a module fluidly connected to the first and second cuttings storage vessels, the module having a valve configured to fluidly connect the first and second cuttings storage vessels. The module further includes a filter system configured to fluidly connect to at least the second cuttings storage vessel, and at least one pump to facilitate the flow of a fluid between the first and second cuttings storage vessels. Also, a module for use at a drilling location that includes a valve for directing drilling fluid between at least a first cuttings storage vessel disposed outside the module and a second cuttings storage vessel disposed outside the module. The module further includes a filter system for filtering the drilling fluid and at least one pump for facilitating the flow of the fluid between at least the first and second cuttings storage vessels.09-04-2008
20110168444Rotary Steerable Tool Employing a Timed Connection - A downhole steering tool includes distinct hydraulic and electronics modules deployed about a shaft. The hydraulics module includes a plurality of hydraulically actuated blades. The electronics module includes electronic circuitry configured to control blade actuation. The hydraulics and electronics modules are physically and electrically connected to one another via a timed connection.07-14-2011
20100126769METHOD OF MODIFYING DRILLING PATTERN, ROCK DRILLING RIG, AND SOFTWARE PRODUCT - A method and a storage device including a software product for modifying a drilling pattern, and a rock drilling rig. One or more holes whose location is to be changed may be selected from a drilling pattern prior to drilling. The hole is assigned a new location by means of a drilling unit and, subsequently, the drilling pattern is updated.05-27-2010
20080245569Apparatus and Methods to Perform Focused Sampling of Reservoir Fluid - Apparatus and methods to perform focused sampling of reservoir fluid are described. An example method couples a sampling probe to a subterranean formation and, while the sampling probe is coupled to the subterranean formation, varies a pumping ratio of at least two displacement units to reduce a contamination level of a formation flu id extracted via the sampling probe from the subterranean formation.10-09-2008
20100038134Drilling fluid pump systems and methods - A system for pumping fluid (e.g., but not limited to, drilling fluid), the system having pump apparatus; including a plurality of removable pump modules; and, in certain aspects, removable valve cartridges for such modules. This abstract is provided to comply with the rules requiring an abstract which will allow a searcher or other reader to quickly ascertain the subject matter of the technical disclosure and is submitted with the understanding that it will not be used to interpret or limit the scope or meaning of the claims, 37 C.F.R. 1.72(b).02-18-2010
20130118807Methods For Geosteering A Drill Bit In Real Time Using Drilling Acoustic Signals - Disclosed is an apparatus, method, and program product for steering a drill bit within a pay zone in a lateral well. The method includes receiving acoustic signature data from a downhole processor assembly. The acoustic signature data includes an amplitude spectrum and one or more acoustic characteristics evaluated from an acoustic signal provided by a sensor arranged adjacent to a drill bit and generated in real-time as a result of rotational contact of the drill bit with encountered rock in the lateral well during drilling. The method further includes comparing the received real-time acoustic signature data to predetermined acoustic signatures determined for a plurality of rock samples, and identifying a lithology type of the rock being encountered by the drill bit based on the comparison. Further, the method includes steering the drill bit in a predefined direction, in real-time, based on the identified lithology type of the rock, for maintaining the drill bit within the pay zone of the lateral well.05-16-2013
20130118808Methods For Geosteering A Drill Bit In Real Time Using Surface Acoustic Signals - Disclosed is an apparatus, method, and program product for steering a drill bit within a pay zone in a lateral well. The method includes receiving acoustic signature data from an acoustic signal analyzing apparatus. The acoustic signature data includes an amplitude spectrum and one or more acoustic characteristics evaluated from an acoustic signal provided by a sensor attached to at least one of a drive shaft and a packing box of a drill rig, and generated in real-time as a result of rotational contact of the drill bit with encountered rock in the lateral well during drilling. The method further includes comparing the received real-time acoustic signature data to predetermined acoustic signatures determined for a plurality of rock samples, and identifying a lithology type of the rock being encountered by the drill bit based on the comparison. Further, the method includes steering the drill bit in a predetermined direction, in real-time, based on the identified lithology type of the rock, for maintaining the drill bit within the pay zone of the lateral well.05-16-2013
20090255729METHODS AND APPARATUS FOR COLLECTING A DOWNHOLE SAMPLE - Apparatus and methods for collecting a downhole sample are provided. The method may include monitoring a flow path parameter, introducing a sealant to a borehole wall when the flow path parameter satisfies a first predetermined condition, and collecting a downhole sample when the flow path parameter satisfies a second predetermined condition. An apparatus may include a formation sampling tool having a flow path, an inhibitor coupled to the formation sampling tool, a sampler coupled to the formation sampling tool, and a selector that selects one or more of the inhibitor and the sampler when a parameter of the flow path satisfies a predetermined condition.10-15-2009
20090250263Adaptive user interface for rock drilling rig - The invention relates to a control apparatus for controlling a multi-phase rock drilling event carried out with a rock drilling rig. In a display of the rock drilling rig or a control unit thereof, a first section is settable for substantially invariable information sources and a second section for information sources to be changed according to the rock drilling situation, and a definition is set rock drilling situation-specifically in the control apparatus about at least one information source, information relating to which is to be displayed in said rock drilling situation. The working phase of the rock drilling event is checked, and an information source suitable for said phase is selected on the basis of said definition. Information relating to the at least one selected information source is displayed in said display part during execution of the rock drilling phase.10-08-2009
20090194330SYSTEM, PROGRAM PRODUCTS, AND METHODS FOR CONTROLLING DRILLING FLUID PARAMETERS - Embodiments of systems, program products, and methods for controlling drilling fluid parameters are provided. These embodiments, for example, provide dynamic density control with highly adaptive, real-time, process-control and are scalable to any rig, large or small, on land or water. Combined static and dynamic stresses and displacements can be determined continuously at strategic locations in and around the wellbore of a well so that insitu and operational induced pressure window limitations at specific weak-points or other locations of interest are controlled.08-06-2009
20090242273DRILL RIG AND METHOD FOR CONTROLLING A FAN THEREIN - A method for controlling at least one fan (10-01-2009
20100147588Device and Method Providing Redundant Automatic Clutch Release and Engine Shut Down on a Drilling or Production Rig - A drilling rig control system adapted for easy interface between a compressed air supply and a drilling rig clutch and brake. Both manual and automatic controls are provided to initiate the device to interrupt and vent the compressed air supply to the clutch and concurrently communicate compressed air to the brake to cause it to engage the drum winding the cable for the rig. Over-pull sensors monitor cable tension and initiate valves in the control system to initiate the compressed air interruption and rerouting upon any sense of over-pull.06-17-2010
20090260876Multiple Distributed Force Measurements - Methods, computer programs, and systems for detecting at least one downhole condition are disclosed. Forces are measured at a plurality of locations along the drillstring. The drillstring includes a drillpipe. At least one of the forces is measured along the drillpipe. At least one downhole condition is detected based, at least in part, on at least one measured force.10-22-2009
20100163307Drill Bits With a Fluid Cushion For Reduced Friction and Methods of Making and Using Same - A drill bit is disclosed that in one configuration may include at least one cutter on a face section of the bit and at least one opening proximate the at least one cutter configured to discharge fluid under pressure onto the formation to create a fluid cushion between the drill bit and the formation during a drilling operation. An actuation device associated with the drill bit may be utilized to provide fluid under pressure to the at least one opening.07-01-2010
20130126239Directional Drilling Attitude Hold Controller - An attitude hold controller method includes receiving at a navigable apparatus a demand inclination and a demand azimuth with respect to a global coordinate system and determining at the navigable apparatus a demand attitude vector according to the received demand inclination and the demand azimuth. Determining at the navigable apparatus a current navigable apparatus attitude vector. Evaluating a control law using the current navigable apparatus vector and the navigable apparatus demand attitude to derive a control law tool face, converting the control law tool face to an equivalent tool face, and applying the equivalent tool face with the navigable apparatus to control the navigable apparatus attitude.05-23-2013
20100044108APPARATUS AND METHOD FOR DETECTION OF POSITION OF A COMPONENT IN AN EARTH FORMATION - An apparatus for detecting a position of a component in an earth formation is disclosed. The apparatus includes: a transmitter configured to emit a first magnetic field into the earth formation and induce an electric current in the component, the transmitter having a first magnetic dipole extending in a first direction; and a receiver for detecting a second magnetic field generated by the component in response to the first magnetic field, the receiver having a second magnetic dipole extending in a second direction orthogonal to the first direction. A method and computer program product for detecting a position of a component in an earth formation is also disclosed. Apparatus and methods are also disclosed for estimating a position of a second borehole being drilled relative to an existing first borehole.02-25-2010
20100025107ADAPTIVE POSITIVE FEED DRILLING SYSTEM - A method, apparatus, and computer program product for a drilling operation. In one advantageous embodiment, the drilling operation may comprise a motor, a rotary sensor, and a controller connected to the rotary sensor. The rotary sensor may be capable of generating a signal in response to rotary movement of the drill motor. The controller may be capable of monitoring a speed of the air motor from the signal generated by the rotary sensor and may be capable of identifying a change from a current layer in a stackup to a new layer in the stackup using the signal.02-04-2010
20100038135SYSTEM AND METHOD FOR EVALUATION OF STRUCTURE-BORN SOUND - A system for evaluation of conditions in a borehole in an earth formation includes: a downhole tool configured to be disposed in the borehole, the downhole tool forming a portion of a drillstring; at least one sensor associated with the downhole tool for recording sound generated in the borehole by the downhole tool and generating data representative of the recorded sound, the recorded sound having a frequency selected from at least one of an audible frequency, a near audible frequency and an ultrasonic frequency; and a processor in operable communication with the at least one sensor, the processor configured to receive the sound data and identify at least one downhole condition selected from at least one of i) a drilling condition, ii) a characteristic of the earth formation and iii) an integrity of the downhole tool, by comparing the recorded sound data to exemplary data patterns.02-18-2010
20100059278METHOD AND DEVICE FOR CONTROLLING AT LEAST ONE DRILLING PARAMETER FOR ROCK DRILLING - The present invention relates to a method and a device for controlling at least one drill parameter when drilling in rock with a drilling machine. During drilling, an impulse-generating device uses an impact means to induce shock waves in a tool working against the rock, a pressure level for a shock-wave-generating pressure is controlled during the drilling, and said drilling machine includes a damping chamber that can be pressurized. The contact of the drilling machine against the rock is affected at least partially by the pressure prevailing in said damping chamber. When the pressure in said damping chamber exceeds said first level and is below said second level, the percussion pressure is controlled as a function of the pressure in said damping chamber.03-11-2010
20110174538CONTROL SYSTEM FOR DRILLING OPERATIONS - The present application is directed to a system providing automatic and manual control of a brake lever on band brake drawworks of a wellbore drilling rig. The system comprises a pneumatic cylinder attached to the brake lever; and a control means in fluid communication with the pneumatic cylinder, the control means being operationally configured to run the pneumatic cylinder in response to information obtained by the control means concerning one or more drilling parameters and operationally configured to disable the pneumatic cylinder.07-21-2011
20100163306Modeling Vibration Effects Introduced By Mud Motor - Torsional, axial and lateral vibrations introduced when a mud motor is used with a drilling tool to drill a borehole are calculated using a model. The model includes different computational modules for each of three distinct motor sections: power, transmission and bearing. The resulting calculated vibration effects are used to enhance the drilling tool and drilling operation.07-01-2010
20120118637Drilling Advisory Systems And Methods Utilizing Objective Functions - Methods and systems for controlling drilling operations include using a statistical model to identify at least one controllable drilling parameter having significant correlation to an objective function incorporating two or more drilling performance measurements. The methods and systems further generate operational recommendations for at least one controllable drilling parameter based at least in part on the statistical model. The operational recommendations are selected to optimize the objective function.05-17-2012
20110108324METHODS AND SYSTEMS FOR DRILLING BOREHOLES - A system for drilling a borehole according includes a drill rig and a control system. The control system receives information from the drill rig that relates to at least one drill parameter. The control system processes information relating to the drill parameter, determines whether the drill parameter is within a predetermined specification for the monitored drill parameter, chooses a hole defect mitigation routine based on the monitored drill parameter when the monitored drill parameter is outside the predetermined specification, and controls the drill rig to implement the chosen hole defect mitigation routine.05-12-2011
20110108323METHODS AND SYSTEMS FOR DRILLING BOREHOLES - A system for drilling a borehole according includes a drill rig and a control system. The control system receives information from the drill rig that relates to at least one drill parameter. The control system processes information relating to the drill parameter, determines whether the drill parameter is within a predetermined specification for the monitored drill parameter, chooses a hole defect mitigation routine based on the monitored drill parameter when the monitored drill parameter is outside the predetermined specification, and controls the drill rig to implement the chosen hole defect mitigation routine.05-12-2011
20110132663WELLBORE STEERING BASED ON ROCK STRESS DIRECTION - A method of steering a drilling operation of a well using rock stress measurements. The method includes obtaining well data from at least one logging while drilling tool in the well, where the well data includes stress direction information, generating, using a central processing unit (CPU), a well trajectory using survey data from the well, where the well trajectory includes a borehole direction, determining, using the CPU, a direction of minimum horizontal stress using the well data, and comparing, using the CPU, the direction of minimum horizontal stress to the borehole direction to determine that a directional criteria is not satisfied. The method further includes in response to determining that the directional criteria is not satisfied, generating an updated well trajectory that satisfies the directional criteria and adjusting the drilling operation using the updated well trajectory.06-09-2011
20110073367COMBINING BELIEF NETWORKS TO GENERATE EXPECTED OUTCOME - A computer usable medium including computer usable program code for determining an oilfield parameter for a drilling operation. The computer usable program code when executed causing a processor to identify first decision factors and second decision factors about the drilling operation, where each of the first decision factors is contained within first nodes, and where each of the second decision factors is contained within second nodes, where the first and second nodes contain common nodes. The computer usable program code further causing the processor to associate the first nodes to create a first belief network and associate the second nodes to create a second belief network, associate the common nodes of the first belief network with the common nodes of the second belief network to form a multinet belief network, and generate at least one oilfield parameter from the multinet belief network.03-31-2011
20110100711METHOD AND EQUIPMENT FOR DISPLAYING DRILL HOLES AND METHOD FOR DIRECTING DRILL ROD WHEN HOLES ARE DRILLED INTO ROCK - A method and equipment for displaying holes to be drilled when drilling holes into rock with a rock-drilling rig having control equipment and a display belonging thereto and measuring means for defining the direction and position of a drill rod, by using a pre-designed drilling plan defined in a three-dimensional coordinate system, in which a starting point (05-05-2011
20090205867Real Time Misalignment Correction of Inclination and Azimuth Measurements - A method for determining wellbore trajectory includes determining survey parameters in the wellbore; measuring force parameter(s) in the wellbore; and correcting the survey parameters using the measured force parameter(s). The downhole measured force parameters may include forces associated with an operation of a steering device such as an internal reaction force, and/or a bending moment. In variants, the method may include measuring a wellbore temperature; measuring a wellbore parameter in addition to the temperature; and correcting a survey parameter using the measured parameter and the measured temperature. These methods may include correcting survey parameters using measured wellbore diameters. Also, a processor in the wellbore may be programmed to perform the correction while in the wellbore and/or control a steering device using measurements provided by a sensor for measuring internal reaction forces.08-20-2009
20100025109Apparatus and Method for Generating Formation Textural Feature Images - Apparatus and methods for providing an image of a formation textural feature are disclosed, which in one aspect may include defining a plurality of sectors for a wellbore, obtaining wellbore image data corresponding to each sector over a wellbore depth, obtaining a gray level co-occurrence matrix from the wellbore image data for a selected textural feature of the formation, and generating from the gray scale co-occurrence matrix an image of the selected textural feature over the wellbore depth.02-04-2010
20100025106Method and device - The present invention relates to a method for controlling a rock drilling process, in which an impulse-generating device comprising an impact element transmits a shock wave to a tool connected to the impulse-generating device, whereby a portion of the energy of the shock wave is transmitted to the rock by means of the tool and a portion of the energy of the shock wave is reflected and brought back to the impulse-generating device as reflected energy. The method comprises steps of generating at least one parameter value representing the reflected energy, and regulating the interaction of said impact element with said tool at least partially based on said value or values to control the rise time and/or length of said shock wave. The invention also relates to a regulation device, an impulse-generating device and a drilling rigg.02-04-2010
20090044981METHOD AND SYSTEM FOR STEERING A DIRECTIONAL DRILLING SYSTEM - A drill bit direction system and method is disclosed that modifies or biases the stochastic movement of the drill bit to change a drilling direction of a drilling system. The direction of the drill bit is monitored to determine if the direction happens to align in some way with a preferred direction. If the direction isn't close enough to a preferred or desired direction, stochastic motion of the drill bit in the borehole may be controlled and/or motion of the drill bit under a side force acting on the drill bit to direct the drilling may be focused or biased to modify the direction of drilling closer to the preferred direction. Any of a number of stochastic motion control mechanisms or biasing mechanisms can be used. Some embodiments can resort to conventional steering mechanisms to supplement the stochastic motion control or side force biasing mechanisms.02-19-2009
20090321133ROCK DRILLING APPARATUS AND METHDO FOR CONTROLLING ROCK DRILLING APPARATUS - A rock drilling apparatus with several actuator units, a user interface control unit, and at least one control means connected to the user interface control unit for controlling the functions of the rock drilling apparatus, and for each actuator unit, a control element connected under the control of the user interface control unit for controlling the operation of the actuator unit in accordance with control signals provided by the user interface control unit, and a method for controlling the rock drilling apparatus. When the control element of an actuator unit of the rock drilling apparatus turns faulty, the control element of another actuator unit is connected to control the first actuator unit when the other actuator unit need not be controlled.12-31-2009
20110155461SYSTEM AND APPARATUS FOR DIRECTING THE DRILLING OF A WELL - A system for directing the drilling of a well at a drill-site includes an instructing unit, an instructed unit, and a central unit. The instructed unit receives drilling instruction from an instructing driller, sends drilling instructions to the central unit, and presents to the instructing driller drilling instructions and instruction confirmations received from the central unit. The instructed unit receives instruction confirmations from an instructed driller, sends instruction confirmations to the central unit, and presents to the instructed driller drilling instructions received from the central unit. The central unit stores and forwards drilling instructions and instruction confirmations to the instructing unit and instructed unit, and generates and stores slide sheet information from the drilling instructions.06-30-2011
20120118636APPARATUS AND METHOD FOR AUTOMATED DRILLING OF A BOREHOLE IN A SUBSURFACE FORMATION - Apparatus and method for automated drilling of a borehole in a subsurface formation. In one embodiment, a method includes selecting at least one control variable. A drilling performance objective having a value that is influenced by drilling of the borehole using the at least one control variable is defined. A first interval of the borehole is drilled maintaining the at least one control variable at a first value. A second interval of the borehole is drilled maintaining the at least one control variable at a second value. A third interval of the borehole is drilled maintaining the at least one control variable at a third value. The third value is selected based on a comparison of the values of the drilling performance objective while drilling the first interval and the second interval to a predetermined optimal value of the drilling performance objective.05-17-2012
20100012376Monolithic movable rotary well drilling rig - A monolithic well drilling rig for drilling either on-shore or off-shore new in-line arranged oil, gas, mineral and water wells or for servicing in-line not productive said wells with well heads emerging from ground by at least three meters, said rig including a drilling mast supporting a vertically upward and downward movable drilling rotary head, to said drilling mast being operatively associated a plurality of operating means including at least pipe and drilling bit and stabilizer container means, pipe gripping and loader means, drilling bit and stabilizer element gripping and loader means, motor driving means, a control operator cab and auxiliary servicing means, characterized in that said drilling mast/derrick and all said operating means associated with said drilling mast/derrick are operatively supported either on a ground movable substructure or on a water surface floating platform.01-21-2010
20100282508IDENTIFYING A TRAJECTORY FOR DRILLING A WELL CROSS REFERENCE TO RELATED APPLICATION - To control well drilling, information relating to a trajectory of a well is received, and fluid flow in the well is simulated according to the received information. Simulating the fluid production comprises simulating production flow assurance that seeks to reduce occurrence of mixtures of different types of fluids that reduce production of a target fluid. In response to results of the simulating, a further trajectory for further drilling of the well is identified.11-11-2010
20100300753MULTIPLE INPUT SCALING AUTODRILLER - A wellbore drilling system is disclosed herein, in which the system includes a weight on bit controller configured to generate a normalized weight on bit output, a drilling torque controller configured to generate a normalized toque on bit output, and a differential pressure controller configured to generate a normalized differential pressure output. The system further includes a rate of penetration controller that is configured to multiply a rate of penetration setpoint with the normalized weight on bit output, the normalized torque on pit output, and the normalized differential pressure output to generate a rate of penetration output.12-02-2010
20120255775METHODS AND SYSTEMS FOR DRILLING BOREHOLES - A system for drilling a borehole according to the present invention includes a drill rig and a control system. The control system receives information from the drill rig that relates to at least one drill parameter. The control system processes information relating to the drill parameter, determines whether the drill parameter is within a predetermined specification for the monitored drill parameter, chooses a hole defect mitigation routine based on the monitored drill parameter when the monitored drill parameter is outside the predetermined specification, and controls the drill rig to implement the chosen hole defect mitigation routine.10-11-2012
20120261190MECHANICAL SPECIFIC ENERGY DRILLING SYSTEM - A mechanical specific energy downhole drilling assembly having a bottomhole assembly including drill pipe and a drill bit, a weight on bit and torque sub for sensing torque, weight on bit and revolutions per minute of the drill bit; a command and control sub for receiving input from the weight on bit and torque sub for determining instantaneous mechanical specific energy of the downhole drilling assembly and an anti-stall tool responsive to real time mechanical specific energy information from the command and control sub to adjust the weight on the drill bit to maximize rate of penetration of the drill bit.10-18-2012
20130008716Rock Drilling Rig and Method for Positioning the Same - The invention relates to method for positioning a rock drilling rig and to a rock drilling rig. The rock drilling rig is moved using combustion-engine-free drive equipment with an electric drive motor. The torque is transmitted from the drive motor to the traction wheels over a mechanical anti-slip transmission connection. The ratio between the drive motor rotation rate and the traction wheel rotation rate is kept constantly the same during positioning. The drive motor is not only used for moving but also for stopping.01-10-2013
20100175922DIRECTIONAL DRILLING CONTROL DEVICES AND METHODS - The instant invention provides apparatus and methods for directional drilling. One embodiment of the invention provides a drill control system including an uphole control device and a downhole control device. The uphole control device is configured to: transmit a reference trajectory to the downhole control device and receive information about an actual trajectory from the downhole control device. The downhole control device is configured to: receive the reference trajectory from the uphole control device, measure the actual trajectory, correct deviations between the reference trajectory and the actual trajectory, and transmit information about the actual trajectory to the uphole control device.07-15-2010
20100133006DOWNHOLE COMMUNICATION DEVICES AND METHODS OF USE - The invention provides downhole communication devices and methods of using downhole communication devices. One aspect of the invention provides a downhole communication device including: a first energy harvesting device; a downhole transceiver in communication with the first energy harvesting device; an accumulator in communication with the energy harvesting device; and a microcontroller. The microcontroller manages communication between the first energy harvesting device, transceiver, and accumulator.06-03-2010
20130146356ADVANCED UNDERGROUND HOMING SYSTEM, APPARATUS AND METHOD - A boring tool that is moved by a drill string to form an underground bore. A transmitter transmits a time varying dipole field as a homing field from the boring tool. A pitch sensor detects a pitch orientation of the boring tool. A homing receiver is positionable at a target location for detecting the homing field to produce a set of flux measurements. A processing arrangement uses the pitch orientation and flux measurements with a determined length of the drill string to determine a vertical homing command for use in controlling depth in directing the boring tool to the target location such that the vertical homing command is generated with a particular accuracy at a given range between the transmitter and the homing receiver and which would otherwise be generated with the particular accuracy for a standard range, different from the particular range. An associated system and method are described.06-13-2013
20130146357System and Method for Managed Pressure Drilling - A method for controlling a downhole pressure during drilling comprises continually sensing in real-time at least one real-time fluid property of an input fluid to a well and of a return fluid from the well. A wellhead setpoint pressure is calculated in real-time that results in a predetermined downhole pressure at a predetermined location in the well, where the calculation based, at least in part, on the at least one continually sensed real-time fluid property. The flow of the return fluid is controllably regulated to maintain the calculated wellhead setpoint pressure.06-13-2013
20120273270Look Ahead Advance Formation Evaluation Tool - Evaluation which investigates the formation or formation characteristic in advance of the drill-bit before the formation or formation feature of interest has been penetrated or traversed.11-01-2012
20110232966METHOD AND APPARATUS FOR REDUCING STICK-SLIP - A method and apparatus for damping stick-slip oscillations in a drill string. In one embodiment a method includes damping the stick-slip oscillations using a drilling mechanism at the top of said drill string. The speed of rotation of the drilling mechanism is controlled using a PI controller. The control is characterised by tuning the PI controller so that the drilling mechanism absorbs most torsional energy from the drill string at a frequency that is at or near a frequency of the stick-slip oscillations.09-29-2011
20090166085DOWNHOLE FLUID ANALYSIS - A method that uses downhole fluid analysis in order to selectively collect and retain formation fluid samples in a drilling environment, as well as, control drilling using downhole fluid analysis.07-02-2009
20120018218Method and apparatus for directional drilling - A bottom-hole assembly for directional drilling incorporates a torque generator with a drive shaft connected to a drill string. The torque generator generates a torque that counters a reactive torque when a drill bit of the bottom-hole assembly is driven. When the drill string is rotated at a static drive speed, a drill tool face of the bottom-hole assembly is stabilized to drill a nonlinear bore segment. When the drill string is rotated at a rotational speed other than the static drive speed the bottom-hole assembly is rotated to drill a linear bore segment.01-26-2012
20130199844Rotary Steerable Tool Actuator Tool Face Control - A technique facilitates controlling the direction of drilling when using a rotary steerable system to drill a borehole. The method comprises processing parameters related to operation of a rotatable collar of the rotary steerable system. The parameters are used in cooperation with characteristics of actuators to control the positioning of an actuator tool face which, in turn, controls the drilling orientation of the rotary steerable system.08-08-2013
20130206477Well Prog Execution Facilitation System and Method - A prog analysis and execution system and method. The system includes a computer control system, an interface engine in communication with the computer control system, the interface engine being configured to receive prog information, and an action item development engine in communication with the control system, the action item development engine being configured to analyze received prog information and to determine corresponding action items. The system further includes a sensor engine in communication with the computer control system, the sensor engine being configured to receive input from at least one sensor for use in controlling a well drilling operation, and an operational equipment engine in communication with the computer control system, the operational equipment engine being configured to receive input from the computer control system and to control the well drilling operation in accordance with the determined action items in the prog.08-15-2013

Patent applications in class AUTOMATIC CONTROL

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