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).

  • Publication number: 20140158359
    Abstract: 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: Application
    Filed: December 6, 2012
    Publication date: June 12, 2014
    Applicant: Halliburton Energy Services, Inc.
    Inventors: Eric Davidson, Steven Ray Blattel
  • Patent number: 8703657
    Abstract: 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: Grant
    Filed: December 6, 2010
    Date of Patent: April 22, 2014
    Assignee: Halliburton Energy Services, Inc.
    Inventors: Cindy C. Fang, Carl Joseph Thaemlitz, Eric Davidson
  • Publication number: 20130288932
    Abstract: 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: Application
    Filed: April 27, 2012
    Publication date: October 31, 2013
    Applicant: HALLIBURTON ENERGY SERVICES, INC.
    Inventors: Andrew A.F. Mackenzie, Eric Davidson
  • Patent number: 8415102
    Abstract: 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: Grant
    Filed: April 10, 2008
    Date of Patent: April 9, 2013
    Assignee: NanoString Technologies, Inc.
    Inventors: Gary K. Geiss, Eric Davidson, Craig E. Dahl
  • Patent number: 8220548
    Abstract: 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: Grant
    Filed: January 12, 2007
    Date of Patent: July 17, 2012
    Assignee: Halliburton Energy Services Inc.
    Inventors: David L. Carbajal, Kenneth W. Oyler, William Shumway, Ian Robb, Eric Davidson
  • Patent number: 8143199
    Abstract: 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: Grant
    Filed: January 21, 2009
    Date of Patent: March 27, 2012
    Assignee: Halliburton Energy Services Inc.
    Inventor: Eric Davidson
  • Patent number: 8138126
    Abstract: 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: Grant
    Filed: January 21, 2009
    Date of Patent: March 20, 2012
    Assignee: Halliburton Energy Services Inc.
    Inventor: Eric Davidson
  • Publication number: 20110268554
    Abstract: 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: Application
    Filed: April 28, 2010
    Publication date: November 3, 2011
    Applicant: GENERAL ELECTRIC COMPANY
    Inventors: Karl Dean Minto, Dwight Eric Davidson, William E. Dixon
  • Patent number: 8047778
    Abstract: 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: Grant
    Filed: January 6, 2009
    Date of Patent: November 1, 2011
    Assignee: General Electric Company
    Inventors: Donald Joseph Kasperski, Dwight Eric Davidson
  • Publication number: 20110118381
    Abstract: 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: Application
    Filed: December 6, 2010
    Publication date: May 19, 2011
    Applicant: HALLIBURTON ENERGY SERVICES, INC.
    Inventors: Cindy C. Fang, Carl J. Thaemlitz, Eric Davidson
  • Patent number: 7906464
    Abstract: 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: Grant
    Filed: May 13, 2008
    Date of Patent: March 15, 2011
    Assignee: Halliburton Energy Services, Inc.
    Inventor: Eric Davidson
  • Patent number: 7870903
    Abstract: 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: Grant
    Filed: July 13, 2005
    Date of Patent: January 18, 2011
    Assignee: Halliburton Energy Services Inc.
    Inventors: Cindy C. Fang, Carl J. Thaemlitz, Eric Davidson
  • Publication number: 20100172755
    Abstract: 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: Application
    Filed: January 6, 2009
    Publication date: July 8, 2010
    Applicant: GENERAL ELECTRIC COMPANY
    Inventors: Donald Joseph Kasperski, Dwight Eric Davidson
  • Publication number: 20090286701
    Abstract: 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: Application
    Filed: May 13, 2008
    Publication date: November 19, 2009
    Applicant: HALLIBURTON ENERGY SERVICES, INC.
    Inventor: Eric Davidson
  • Publication number: 20090126999
    Abstract: 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: Application
    Filed: January 21, 2009
    Publication date: May 21, 2009
    Inventor: Eric Davidson
  • Publication number: 20090126931
    Abstract: 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: Application
    Filed: January 21, 2009
    Publication date: May 21, 2009
    Inventor: Eric Davidson
  • Patent number: 7501385
    Abstract: 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: Grant
    Filed: June 15, 2004
    Date of Patent: March 10, 2009
    Assignee: Halliburton Energy Services, Inc.
    Inventor: Eric A. Davidson
  • Publication number: 20080169102
    Abstract: 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: Application
    Filed: January 12, 2007
    Publication date: July 17, 2008
    Inventors: David L. Carbajal, Kenneth W. Oyler, William Shumway, Ian Robb, Eric Davidson
  • Publication number: 20080169103
    Abstract: 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: Application
    Filed: January 12, 2007
    Publication date: July 17, 2008
    Inventors: David L. Carbajal, Kenneth W. Oyler, William Shumway, Ian Robb, Eric Davidson
  • Publication number: 20070113295
    Abstract: 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: Application
    Filed: September 25, 2006
    Publication date: May 17, 2007
    Applicant: California Institute of Technology
    Inventors: Eric Davidson, Joel Smith