Patents by Inventor Eric Davidson
Eric Davidson has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).
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Publication number: 20140158359Abstract: Methods for increasing the permeability of a portion of a subterranean formation surrounding a wellbore using non-hydrolyzed liquid esters to attack carbonates within acid-soluble formations without requiring the use of a catalyst or enzyme. Some methods comprise providing a treatment fluid comprising a non-hydrolyzed liquid ester in a base fluid; introducing the treatment fluid into a subterranean formation at matrix flow rates to allow the non-hydrolyzed liquid ester to penetrate into at least a portion of the subterranean formation; and leaving the treatment fluid in contact with the subterranean formation for a period of time during which at least a portion of the non-hydrolyzed liquid ester hydrolyzes to produce an acid.Type: ApplicationFiled: December 6, 2012Publication date: June 12, 2014Applicant: Halliburton Energy Services, Inc.Inventors: Eric Davidson, Steven Ray Blattel
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Patent number: 8703657Abstract: A sealant composition comprising an inverse emulsion polymer and methods of servicing a wellbore using the same are disclosed. In one embodiment, a method of servicing a wellbore that penetrates a subterranean formation is disclosed. The method comprises placing a sealant composition comprising an inverse emulsion polymer into the wellbore to reduce a loss of fluid to the subterranean formation during placement of the fluid in the wellbore.Type: GrantFiled: December 6, 2010Date of Patent: April 22, 2014Assignee: Halliburton Energy Services, Inc.Inventors: Cindy C. Fang, Carl Joseph Thaemlitz, Eric Davidson
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Publication number: 20130288932Abstract: According to an embodiment, a method of providing a biopolymer comprises: cryodesiccating a broth, wherein the broth comprises: (A) a biopolymer, wherein the biopolymer is an exopolysaccharide; and (B) a liquid growth medium. According to certain embodiments, the biopolymer is produced by the fermentation of at least one carbohydrate via a microbe. According to an embodiment, the microbe is a bacterium. According to another embodiment, the microbe is a fungus.Type: ApplicationFiled: April 27, 2012Publication date: October 31, 2013Applicant: HALLIBURTON ENERGY SERVICES, INC.Inventors: Andrew A.F. Mackenzie, Eric Davidson
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Patent number: 8415102Abstract: The present invention relates to compositions and methods for detection and quantification of individual target molecules in biomolecular samples. In particular, the invention relates to coded, labeled probes that are capable of binding to and identifying target molecules based on the probes' label codes. Methods, computers, and computer program products for identifying target-specific sequences for inclusion in the probes are also provided, as are methods of making and using such probes. The probes can be used in diagnostic, prognostic, quality control and screening applications.Type: GrantFiled: April 10, 2008Date of Patent: April 9, 2013Assignee: NanoString Technologies, Inc.Inventors: Gary K. Geiss, Eric Davidson, Craig E. Dahl
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Patent number: 8220548Abstract: Of the many methods and compositions provided herein, in one embodiment, the invention provides a method comprising: providing an oil-wet well bore surface; providing a surfactant wash treatment fluid that comprises an acid-compatible surfactant, an acid and/or an acid-generating component, and an aqueous fluid; contacting the oil-wet well bore surface with the surfactant wash treatment fluid; allowing the oil-wet well bore surface to become water-wet; and producing fluids from the formation. In another embodiment, the invention provides a surfactant wash treatment fluid for use in a subterranean formation comprising an aqueous fluid, an acid-compatible surfactant, an acid and/or an acid-generating component.Type: GrantFiled: January 12, 2007Date of Patent: July 17, 2012Assignee: Halliburton Energy Services Inc.Inventors: David L. Carbajal, Kenneth W. Oyler, William Shumway, Ian Robb, Eric Davidson
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Patent number: 8143199Abstract: The present invention relates, in general, to subterranean fluids, and more particularly, to subterranean drilling fluids that may be useful for reducing the production of water from a portion of a subterranean formation and/or stabilizing an unconsolidated portion of a subterranean formation while drilling. In some embodiments, the present invention provides methods of reducing the flow of water from a portion of a subterranean formation that comprise contacting the portion of the subterranean formation with an organoaluminum compound, the organoaluminum compound being capable of forming a reaction product in the presence of water. The present invention also includes methods of drilling a well bore in a subterranean formation, methods of enhancing the stability of an unconsolidated portion of a subterranean formation, methods of stabilizing an unconsolidated portion of a subterranean formation, and drilling fluids.Type: GrantFiled: January 21, 2009Date of Patent: March 27, 2012Assignee: Halliburton Energy Services Inc.Inventor: Eric Davidson
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Patent number: 8138126Abstract: The present invention relates, in general, to subterranean fluids, and more particularly, to subterranean drilling fluids that may be useful for reducing the production of water from a portion of a subterranean formation and/or stabilizing an unconsolidated portion of a subterranean formation while drilling. In some embodiments, the present invention provides methods of reducing the flow of water from a portion of a subterranean formation that comprise contacting the portion of the subterranean formation with an organoaluminum compound, the organoaluminum compound being capable of forming a reaction product in the presence of water. The present invention also includes methods of drilling a well bore in a subterranean formation, methods of enhancing the stability of an unconsolidated portion of a subterranean formation, methods of stabilizing an unconsolidated portion of a subterranean formation, and drilling fluids.Type: GrantFiled: January 21, 2009Date of Patent: March 20, 2012Assignee: Halliburton Energy Services Inc.Inventor: Eric Davidson
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Publication number: 20110268554Abstract: Certain embodiments of the invention may include systems, methods, and apparatus for controlling turbine guide vane positions. According to an example embodiment of the invention, a method is provided for controlling at least one turbine guide vane. The method includes receiving a reference signal associated with the at least one turbine guide vane, measuring an actuator position and an angular position associated with the at least one turbine guide vane, generating a deadband signal based at least in part on the angular position, and manipulating the at least one turbine guide vane based at least in part on the deadband signal and the reference signal.Type: ApplicationFiled: April 28, 2010Publication date: November 3, 2011Applicant: GENERAL ELECTRIC COMPANYInventors: Karl Dean Minto, Dwight Eric Davidson, William E. Dixon
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Patent number: 8047778Abstract: Disclosed herein is a compressor case assembly that includes a compressor case section having an assembly track and a set of stator portions that are insertable in the assembly track, the compressor case section and the set of stator portions are configured such that the set of stator portions only assembles to the compressor case section in a single configuration.Type: GrantFiled: January 6, 2009Date of Patent: November 1, 2011Assignee: General Electric CompanyInventors: Donald Joseph Kasperski, Dwight Eric Davidson
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Publication number: 20110118381Abstract: A sealant composition comprising an inverse emulsion polymer and methods of servicing a wellbore using the same are disclosed. In one embodiment, a method of servicing a wellbore that penetrates a subterranean formation is disclosed. The method comprises placing a sealant composition comprising an inverse emulsion polymer into the wellbore to reduce a loss of fluid to the subterranean formation during placement of the fluid in the wellbore.Type: ApplicationFiled: December 6, 2010Publication date: May 19, 2011Applicant: HALLIBURTON ENERGY SERVICES, INC.Inventors: Cindy C. Fang, Carl J. Thaemlitz, Eric Davidson
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Patent number: 7906464Abstract: A method of servicing a wellbore comprising providing a composition comprising a mutual solvent precursor, an acid precursor, and an aqueous fluid, and contacting the composition with oil wet solids in the wellbore. A method of servicing a wellbore comprising introducing an oil-based fluid into a wellbore, wherein the oil-based fluid forms oil wet solids in the wellbore, contacting the oil wet solids in the wellbore with a composition comprising a mutual solvent precursor; an acid precursor and an aqueous fluid, and allowing the oil wet solids to become water wet. A method of servicing a well bore comprising contacting a composition comprising a formate ester with oil wet solids in the well bore under conditions wherein the formate ester hydrolyzes to release formic acid, wherein the formic acid catalyzes the hydrolysis of additional formate ester, and wherein all or a portion of the formate ester converts at least a portion of the oil-wet solids to water-wet solids.Type: GrantFiled: May 13, 2008Date of Patent: March 15, 2011Assignee: Halliburton Energy Services, Inc.Inventor: Eric Davidson
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Patent number: 7870903Abstract: A sealant composition comprising an inverse emulsion polymer and methods of servicing a wellbore using the same are disclosed. In one embodiment, a method of servicing a wellbore that penetrates a subterranean formation is disclosed. The method comprises placing a sealant composition comprising an inverse emulsion polymer into the wellbore to reduce a loss of fluid to the subterranean formation during placement of the fluid in the wellbore.Type: GrantFiled: July 13, 2005Date of Patent: January 18, 2011Assignee: Halliburton Energy Services Inc.Inventors: Cindy C. Fang, Carl J. Thaemlitz, Eric Davidson
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Publication number: 20100172755Abstract: Disclosed herein is a compressor case assembly that includes a compressor case section having an assembly track and a set of stator portions that are insertable in the assembly track, the compressor case section and the set of stator portions are configured such that the set of stator portions only assembles to the compressor case section in a single configuration.Type: ApplicationFiled: January 6, 2009Publication date: July 8, 2010Applicant: GENERAL ELECTRIC COMPANYInventors: Donald Joseph Kasperski, Dwight Eric Davidson
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Publication number: 20090286701Abstract: A method of servicing a wellbore comprising providing a composition comprising a mutual solvent precursor, an acid precursor, and an aqueous fluid, and contacting the composition with oil wet solids in the wellbore. A method of servicing a wellbore comprising introducing an oil-based fluid into a wellbore, wherein the oil-based fluid forms oil wet solids in the wellbore, contacting the oil wet solids in the wellbore with a composition comprising a mutual solvent precursor; an acid precursor and an aqueous fluid, and allowing the oil wet solids to become water wet. A method of servicing a well bore comprising contacting a composition comprising a formate ester with oil wet solids in the well bore under conditions wherein the formate ester hydrolyzes to release formic acid, wherein the formic acid catalyzes the hydrolysis of additional formate ester, and wherein all or a portion of the formate ester converts at least a portion of the oil-wet solids to water-wet solids.Type: ApplicationFiled: May 13, 2008Publication date: November 19, 2009Applicant: HALLIBURTON ENERGY SERVICES, INC.Inventor: Eric Davidson
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Publication number: 20090126999Abstract: The present invention relates, in general, to subterranean fluids, and more particularly, to subterranean drilling fluids that may be useful for reducing the production of water from a portion of a subterranean formation and/or stabilizing an unconsolidated portion of a subterranean formation while drilling. In some embodiments, the present invention provides methods of reducing the flow of water from a portion of a subterranean formation that comprise contacting the portion of the subterranean formation with an organoaluminum compound, the organoaluminum compound being capable of forming a reaction product in the presence of water. The present invention also includes methods of drilling a well bore in a subterranean formation, methods of enhancing the stability of an unconsolidated portion of a subterranean formation, methods of stabilizing an unconsolidated portion of a subterranean formation, and drilling fluids.Type: ApplicationFiled: January 21, 2009Publication date: May 21, 2009Inventor: Eric Davidson
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Publication number: 20090126931Abstract: The present invention relates, in general, to subterranean fluids, and more particularly, to subterranean drilling fluids that may be useful for reducing the production of water from a portion of a subterranean formation and/or stabilizing an unconsolidated portion of a subterranean formation while drilling. In some embodiments, the present invention provides methods of reducing the flow of water from a portion of a subterranean formation that comprise contacting the portion of the subterranean formation with an organoaluminum compound, the organoaluminum compound being capable of forming a reaction product in the presence of water. The present invention also includes methods of drilling a well bore in a subterranean formation, methods of enhancing the stability of an unconsolidated portion of a subterranean formation, methods of stabilizing an unconsolidated portion of a subterranean formation, and drilling fluids.Type: ApplicationFiled: January 21, 2009Publication date: May 21, 2009Inventor: Eric Davidson
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Patent number: 7501385Abstract: The present invention relates, in general, to subterranean fluids, and more particularly, to subterranean drilling fluids that may be useful for reducing the production of water from a portion of a subterranean formation and/or stabilizing an unconsolidated portion of a subterranean formation while drilling. In some embodiments, the present invention provides methods of reducing the flow of water from a portion of a subterranean formation that comprise contacting the portion of the subterranean formation with an organoaluminum compound, the organoaluminum compound being capable of forming a reaction product in the presence of water. The present invention also includes methods of drilling a well bore in a subterranean formation, methods of enhancing the stability of an unconsolidated portion of a subterranean formation, methods of stabilizing an unconsolidated portion of a subterranean formation, and drilling fluids.Type: GrantFiled: June 15, 2004Date of Patent: March 10, 2009Assignee: Halliburton Energy Services, Inc.Inventor: Eric A. Davidson
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Publication number: 20080169102Abstract: Of the many methods and compositions provided herein, in one embodiment, the invention provides a method comprising: providing an oil-wet well bore surface; providing a surfactant wash treatment fluid that comprises an acid-compatible surfactant, an acid and/or an acid-generating component, and an aqueous fluid; contacting the oil-wet well bore surface with the surfactant wash treatment fluid; allowing the oil-wet well bore surface to become water-wet; and producing fluids from the formation. In another embodiment, the invention provides a surfactant wash treatment fluid for use in a subterranean formation comprising an aqueous fluid, an acid-compatible surfactant, an acid and/or an acid-generating component.Type: ApplicationFiled: January 12, 2007Publication date: July 17, 2008Inventors: David L. Carbajal, Kenneth W. Oyler, William Shumway, Ian Robb, Eric Davidson
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Publication number: 20080169103Abstract: Of the many methods and compositions provided herein, in one embodiment, the invention provides a method comprising: providing an oil-wet well bore surface; providing a surfactant wash treatment fluid that comprises an acid-compatible surfactant, an acid and/or an acid-generating component, and an aqueous fluid; contacting the oil-wet well bore surface with the surfactant wash treatment fluid; allowing the oil-wet well bore surface to become water-wet; and producing fluids from the formation. In another embodiment, the invention provides a surfactant wash treatment fluid for use in a subterranean formation comprising an aqueous fluid, an acid-compatible surfactant, an acid and/or an acid-generating component.Type: ApplicationFiled: January 12, 2007Publication date: July 17, 2008Inventors: David L. Carbajal, Kenneth W. Oyler, William Shumway, Ian Robb, Eric Davidson
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Publication number: 20070113295Abstract: The invention relates to methods of regulating gene expression, e.g., to turn on or off, or up or down gene expression in an organism when and where desired, without the toxic side effects usually associated with other contemporary methods, such as those toxic side effects caused by introducing compounds that do not naturally occur in life.Type: ApplicationFiled: September 25, 2006Publication date: May 17, 2007Applicant: California Institute of TechnologyInventors: Eric Davidson, Joel Smith