Patent application number | Description | Published |
20080287739 | Torque-Transmitting, Locking Instrument Holder and Method for Operating the Instrument Holder - A torque-transmitting, locking instrument holder, includes a hollow body having a proximal end for receiving an instrument, a distal end for protrusion of the instrument, and a handle to be gripped by an operator. A device is provided for locking the handle to and unlocking the handle from the instrument at least partly disposed within the hollow body. A method for operating the instrument holder includes providing a hollow body having a proximal end for receiving an instrument, a distal end for protrusion of the instrument, and a handle to be gripped by an operator. The instrument is placed at least partly within the hollow body and the handle is locked to and unlocked from the instrument. | 11-20-2008 |
20090005643 | Torque-transmitting, variably-flexible, locking insertion device and method for operating the insertion device - A torque-transmitting, variably-flexible, locking insertion device includes a hollow body having a proximal end with an entrance for receiving an instrument, a distal end with a tip for protrusion of the instrument, and a handle to be gripped by an operator. A device locks the handle to and unlocks the handle from the instrument, which is at least partly disposed within the hollow body. A device transitions the hollow body between a relatively flexible condition and a relatively stiff condition. A method for operating a torque-transmitting, locking insertion device includes placing the instrument at least partly within the hollow body and locking the handle to and unlocking the handle from the instrument. The hollow body is transitioned between a relatively flexible condition and a relatively stiff condition. | 01-01-2009 |
20090026682 | Releasing Instrument Holder and Method of Operating the Instrument Holder - An automatically releasing instrument holder includes a grip to be held by an operator for guiding an instrument, an actuator to be activated by the operator and a biasing device exerting a force. A clamp is moved by the actuator toward the instrument against the force of the biasing device and is moved by the biasing device away from the instrument upon releasing the actuator. A method for operating the instrument holder is also provided. | 01-29-2009 |
20090209815 | Torque-Transmitting, Variably-Flexible, Corrugated Insertion Device and Method for Transmitting Torque and Variably Flexing a Corrugated Insertion Device - A torque-transmitting, variably-flexible, corrugated insertion device includes a hollow body having a proximal end with an entrance for receiving an instrument and a distal end with a tip for protrusion of the instrument. A vacuum-activated device transitions the hollow body between a relatively flexible condition and a relatively stiff condition. A corrugated tube transmits torque from the proximal end toward the distal end. A method for transmitting torque and variably flexing an insertion device for receiving an instrument includes providing a hollow body, transmitting torque along the hollow body with a corrugated tube, applying suction to create a vacuum in the hollow body for placing the hollow body in a relatively stiff condition, and relieving the vacuum for placing the hollow body in a relatively flexible condition. | 08-20-2009 |
Patent application number | Description | Published |
20110062085 | Method of Removing Metal Contaminants from High-Density Brines - A method for the removal of soluble metal ion contamination from fluids is disclosed. The method includes passing the contaminated fluid through a filter medium comprising a reducing metal and a filter aid, such as diatomaceous earth, and collecting a filtrate with lower concentration of soluble metal ion contamination. The reducing metal can have a reduction potential of from −0.50 volt to −3.10 volt and can be capable of reducing the soluble metal ions to insoluble metal, which can then be entrapped in the filter medium or otherwise separated. | 03-17-2011 |
20130032409 | Methods of Preventing Emulsification of Crude Oil in Well Bore Treatment Fluids - Of the many compositions and methods provided herein, one method includes a method of preventing emulsification of crude :oil into an aqueous-based treatment fluid, comprising: contacting, crude oil in a well bore with the aqueous-based treatment fluid comprising a styrene-acrylate copolymer. Wherein the crude oil has an API gravity of about 10 or greater; and allowing the styrene-acrylate copolymer to interact with the crude oil in the well bore. | 02-07-2013 |
20130118744 | Self-Degrading High Temperature Stable Gel for Downhole Applications - A method of treating a subterranean formation including providing a treatment fluid comprising an aqueous carrier fluid, a crosslinking agent, a pH-adjusting agent, and a terpolymer that comprises 2-acrylamido-2-methylpropanesulfonic acid, acrylamide, and acrylic acid monomer units, or any salt thereof, where the treatment fluid does not include any gel stabilizers, or only minimal amounts of gel stabilizers. The treatment fluid is introduced into a subterranean formation and is allowed to form a gel in the subterranean formation. The gel is broken, without using an external breaker, after the gel has been in the subterranean formation for at least about one day. | 05-16-2013 |
Patent application number | Description | Published |
20140060841 | FLUOROUS ADDITIVES FOR USE IN A FLUOROUS-BASED TREATMENT FLUID - A treatment fluid comprises: a liquid fluorinated compound; and at least one additive, wherein the additive: (A) comprises carbon and at least one fluorine functional group; and (B) is soluble or dispersible in the liquid fluorinated compound. A method of treating a portion of a well comprises: forming the treatment fluid; and introducing the treatment fluid into the well. | 03-06-2014 |
20140087978 | METHODS OF CONVERTING AN INACTIVE BIOCIDE INTO AN ACTIVE BIOCIDE USING A CHEMICAL REACTION - A method of converting an inactive biocide into an active biocide comprises: contacting the inactive biocide with an activating agent, wherein the activating agent is capable of chemically reacting with the inactive biocide; and causing or allowing a chemical reaction to take place between the inactive biocide and the activating agent, wherein the chemical reaction produces the active biocide. The methods can also include deactivating the active biocide via a chemical reaction between the active biocide and a deactivating agent. | 03-27-2014 |
20140323359 | METHODS OF TREATING A WELL WITH A FLUORINATED LUBRICANT OR CORROSION INHIBITOR - A treatment fluid comprises: a base fluid; and at least one additive, wherein the additive: (i) comprises a fluorinated compound; and (ii) is a lubricant that is surface active. The additive can reduce the coefficient of friction between two or more surfaces. The surfaces can be the surface of a wellbore component. The additive can also be a corrosion inhibitor. A method of treating a portion of a well comprises: forming the treatment fluid; and introducing the treatment fluid into the well. | 10-30-2014 |
20140338912 | THERMALLY-ACTIVATED GELLANT FOR AN OIL OR GAS TREATMENTFLUID - A treatment fluid for treating a portion of a subterranean formation comprises: a base fluid, wherein the base fluid comprises a hydrocarbon liquid; and a gellant, wherein the gellant: is a polymer; and is activated at an activation temperature, wherein the thermal activation of the gellant causes the treatment fluid to become a gel. A method of treating a portion of a subterranean formation includes introducing the treatment fluid into the portion of the subterranean formation, wherein the subterranean formation is penetrated by a well, wherein at least a portion of the well has a bottomhole temperature greater than or equal to the activation temperature, and wherein the step of introducing comprises introducing the treatment fluid into the portion of the well. | 11-20-2014 |
20150141300 | FLUOROUS ADDITIVES FOR USE IN A FLUOROUS-BASED TREATMENT FLUID - A treatment fluid comprises: a liquid fluorinated compound; and at least one additive, wherein the additive: (A) comprises carbon and at least one fluorine functional group; and (B) is soluble or dispersible in the liquid fluorinated compound. A method of treating a portion of a well comprises: forming the treatment fluid; and introducing the treatment fluid into the well. | 05-21-2015 |
Patent application number | Description | Published |
20100273684 | Method for enhancing stability of oil based drilling fluids at high temperatures - Methods for enhancing the stability of ester based drilling fluids for drilling, running casing in, and/or cementing a borehole in a subterranean formation are disclosed, as well as improved ester based drilling fluids for use at high temperatures. The advantages of the invention are realized by inhibiting hydrolysis of the esters in the drilling fluid by adding a monomeric or polymeric carbodiimide hydrolysis inhibitor to the drilling fluid. | 10-28-2010 |
20120118569 | Oxygen Scavenger Compositions for Completion Brines - An oxygen scavenger for completion brines effective and stable in high temperature subterranean formations. In one embodiment, the scavenger contains erythorbate and alkylhydroxlyamine. | 05-17-2012 |
20120258893 | Oil Based Drilling Fluids With Enhanced Stability at High Temperatures - Ester based drilling fluids with enhanced stability at high temperatures for drilling, running casing in, and/or cementing a borehole in a subterranean formation. The drilling fluids comprise a monomeric or polymeric carbodiimide hydrolysis inhibitor. | 10-11-2012 |
20130008654 | Method for Drilling and Completion Operations with Settable Resin Compositions - A method for completing boreholes penetrating narrow gradient zones in a subterranean formation after drilling with an oil based drilling fluid for recovery of hydrocarbons. The method employs an epoxy-based resin composition with controllable density and rheology that provides a low equivalent circulating density and is compatible with the oil based drilling fluid. The composition acts as a substitute for cement in cementing operations including adhering casing to the borehole, zonal isolation, and consolidation. | 01-10-2013 |
20130087332 | Composite formulations and methods of making and using same - A method of servicing a wellbore comprising placing a composition comprising an emulsified resin composite into a fluid loss zone of the wellbore, wherein the emulsified resin composite comprises a nonaqueous external phase (NEP) and an aqueous internal phase (AIP), and allowing the composition to cure to form a composite material. | 04-11-2013 |
20130098615 | NOVEL HIGH DENSITY BRINES FOR COMPLETION APPLICATIONS - Clear, high density brine for use completion operations in a subterranean formation for the recovery of hydrocarbons. The brine comprises an ionic compound selected from the group consisting of zinc iodide, strontium bromide, strontium iodide, cerium bromide, cerium iodide, cerium chloride, lanthanum bromide, lanthanum iodide, lanthanum chloride, and mixtures thereof. The brine may also advantageously be used as the internal phase of invert emulsion drilling fluids. | 04-25-2013 |
20130118740 | Well Completion Methods Using Gellable Treatment Fluids Having Long Term Thermal Stability of the Gelled State - Gellable treatment fluids containing a terpolymer that comprises 2-acrylamido-2-methylpropanesulfonic acid, acrylamide, acrylic acid monomer units can be used in various subterranean operations where it is necessary for the treatment fluid to remain in a gelled state for extended periods of time at high formation temperatures. Methods for treating a subterranean formation can comprise providing a treatment fluid comprising an aqueous carrier fluid, a crosslinking agent, a gel stabilizer, and a terpolymer that comprises 2-acrylamido-2-methylpropanesulfonic acid, acrylamide, and acrylic acid monomer units, or any salt thereof; introducing the treatment fluid into a subterranean formation; allowing the treatment fluid to form a gel in the subterranean formation; and breaking the gel after it has been in the subterranean formation for at least about one day. | 05-16-2013 |
20130178398 | Oxygen Scavenger Compositions for Completion Brines - An oxygen scavenger for completion brines effective and stable in high temperature subterranean formations. In one embodiment, the scavenger contains erythorbate and alkylhydroxlyamine. | 07-11-2013 |
20140121135 | Wellbore Servicing Compositions and Methods of Making and Using Same - A method of servicing a wellbore in a subterranean formation comprising preparing an invert emulsion comprising an aqueous fluid, an oleaginous fluid, and an emulsifier composition (EC), wherein the emulsifier composition comprises an emulsifier, a diluent, and a thinner, wherein the thinner comprises an alcohol, a fatty acid amide, or combinations thereof; and placing the invert emulsion in the wellbore. A method of servicing a wellbore in a subterranean formation comprising flowing a wellbore serving fluid comprising an emulsifier composition (EC) through a portion of a subterranean formation, wherein the EC comprises an emulsifier, a diluent and a thinner and wherein the thinner comprises 2-methyl-1-propanol, 2-methyl-2-butanol, a fatty acid amide, or combinations thereof; contacting the EC with oil in situ within the formation to form an emulsion; and reducing the water-oil interfacial tension and altering the wettability to provide enhanced oil recovery from the formation. | 05-01-2014 |
20140162910 | Wellbore Servicing Compositions and Methods of Making and Using Same - A method of servicing a wellbore in a subterranean formation having one or more lost circulation zones comprising placing a wellbore servicing fluid comprising a sealing composition into the wellbore, wherein the sealing composition comprises a latex and an accelerator and wherein the latex, the accelerator or both are encapsulated with an encapsulation material. A wellbore servicing fluid comprising a latex and an accelerator wherein the latex, the accelerator, or both are encapsulated. | 06-12-2014 |
20140262228 | Mechanically Degradable Polymers For Wellbore Work Fluid Applications - A composition including a wellbore work fluid and a polymer having mechanically labile chemical bonds is injected downhole, and combines with fluid present downhole to yield a composite fluid. Mechanical energy (e.g., ultrasonic energy) is provided to the composite fluid downhole to cleave the mechanically labile chemical bonds in the polymer. The polymer may be used as a viscosifier, friction reducer, or fluid loss additive. Cleaving the mechanically labile chemical bonds with mechanical energy allows precise degradation downhole. | 09-18-2014 |
20140367111 | WETTABILITY ALTERING GELLABLE TREATMENT FLUIDS - Gellable treatment fluids containing an acrylamide copolymer and a suitable surfactant can be used in various subterranean operations where it is necessary for the treatment fluid to remain in a gelled state for extended periods of time at high formation temperatures. The surfactants are chosen to increase the relative permeability of the hydrocarbons in the subterranean formation by wettability alteration. | 12-18-2014 |