Patents by Inventor Christopher J. Stephenson

Christopher J. Stephenson 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).

  • Patent number: 10696897
    Abstract: Non-spherical particulates are useful in the stimulation of subterranean formations. A proppant pack composed of the non-spherical particulates exhibits greater porosity than a corresponding proppant pack composed of spherical particulates. In addition, the non-spherical particulates exhibit higher conductivity at higher stresses than spherical shaped particulates.
    Type: Grant
    Filed: August 28, 2018
    Date of Patent: June 30, 2020
    Assignee: Baker Hughes, a GE company, LLC
    Inventors: Phillip B. Kaufman, D. V. Satyanarayana Gupta, Allan R. Rickards, Christopher J. Stephenson
  • Publication number: 20190040312
    Abstract: Non-spherical particulates are useful in the stimulation of subterranean formations. A proppant pack composed of the non-spherical particulates exhibits greater porosity than a corresponding proppant pack composed of spherical particulates. In addition, the non-spherical particulates exhibit higher conductivity at higher stresses than spherical shaped particulates.
    Type: Application
    Filed: August 28, 2018
    Publication date: February 7, 2019
    Inventors: Phillip B. Kaufman, D.V. Satyanarayana Gupta, Allan R. Rickards, Christopher J. Stephenson
  • Patent number: 10087365
    Abstract: Cements, such as alkali activated binder, may be used as coatings on proppants, such as sand, to improve the strength thereof. The resulting chemically bonded phosphate ceramic (CBPC) coated proppants show increased compressive strength between about 60 to about 130 MPa, as well as produced fines of lower than about 10 wt % at 10,000 psi closure stress.
    Type: Grant
    Filed: November 23, 2016
    Date of Patent: October 2, 2018
    Assignee: Baker Hughes, a GE company, LLC
    Inventors: Naima Bestaoui-Spurr, Qi Qu, Christopher J. Stephenson
  • Patent number: 10087364
    Abstract: Non-spherical particulates are useful in the stimulation of subterranean formations. A proppant pack composed of the non-spherical particulates exhibits greater porosity than a corresponding proppant pack composed of spherical particulates. In addition, the non-spherical particulates exhibit higher conductivity at higher stresses than spherical shaped particulates.
    Type: Grant
    Filed: May 15, 2015
    Date of Patent: October 2, 2018
    Assignee: Baker Hughes, a GE company, LLC
    Inventors: Phillip B. Kaufman, D. V. Satyanarayana Gupta, Allan R. Rickards, Christopher J. Stephenson
  • Publication number: 20180258343
    Abstract: A proppant may include particles including a sintered ceramic composition, wherein the particles have a particle size distribution such that less than 25 wt. % of the particles have a particle size less than 100 mesh, and wherein the particles have a particle size distribution such that less than 1 wt % of the particles have a particle size greater than 60 mesh. The particles may have a sphericity ranging from 0.4 to 0.9. A proppant may include particles including a sintered ceramic composition, wherein the proppant has a conductivity of at least 1.5 times the conductivity of 100 mesh sand. A method of treating a subterranean area around a well bore may include providing a fracturing fluid including such proppants, and injecting the fracturing fluid into the subterranean area around the well bore.
    Type: Application
    Filed: September 23, 2016
    Publication date: September 13, 2018
    Inventors: Robert J. PRUETT, Christopher J. STEPHENSON, Berenice C. EVERETT, Parker BURDELL, Tonia BOUTELLE
  • Publication number: 20170073576
    Abstract: Cements, such as alkali activated binder, may be used as coatings on proppants, such as sand, to improve the strength thereof. The resulting chemically bonded phosphate ceramic (CBPC) coated proppants show increased compressive strength between about 60 to about 130 MPa, as well as produced fines of lower than about 10 wt % at 10,000 psi closure stress.
    Type: Application
    Filed: November 23, 2016
    Publication date: March 16, 2017
    Applicant: BAKER HUGHES INCORPORATED
    Inventors: NAIMA BESTAOUI-SPURR, QI QU, CHRISTOPHER J. STEPHENSON
  • Publication number: 20150259593
    Abstract: Non-spherical particulates are useful in the stimulation of subterranean formations. A proppant pack composed of the non-spherical particulates exhibits greater porosity than a corresponding proppant pack composed of spherical particulates. In addition, the non-spherical particulates exhibit higher conductivity at higher stresses than spherical shaped particulates.
    Type: Application
    Filed: May 15, 2015
    Publication date: September 17, 2015
    Inventors: Phillip B. Kaufman, D.V. Satyanarayana Gupta, Allan R. Rickards, Christopher J. Stephenson
  • Patent number: 9051512
    Abstract: Non-spherical particulates are useful in the stimulation of subterranean formations. A proppant pack composed of the non-spherical particulates exhibits greater porosity than a corresponding proppant pack composed of spherical particulates. In addition, the non-spherical particulates exhibit higher conductivity at higher stresses than spherical shaped particulates.
    Type: Grant
    Filed: April 27, 2012
    Date of Patent: June 9, 2015
    Assignee: Baker Hughes Incorporated
    Inventors: Phillip B. Kaufman, D. V. Satyanarayana Gupta, Allan R. Rickards, Christopher J. Stephenson
  • Publication number: 20150114641
    Abstract: A deformable particulate material made of cement materials such as aluminosilicate cement and having an aspect ratio of greater than 1 to about 25 may be mixed with conventional proppants to give a blend with improved flow back capacity when the blend is injected into a hydraulic fracture created in a subterranean formation.
    Type: Application
    Filed: October 30, 2013
    Publication date: April 30, 2015
    Applicant: Baker Hughes Incorporated
    Inventors: Naima Bestaoui-Spurr, Qi Qu, Christopher J. Stephenson
  • Publication number: 20150114640
    Abstract: Cements, such as alkali activated aluminosilicate, may be used as coatings on proppants, such as brown sand and white sand, to improve the strength thereof. The resulting coated proppants show increased strength as well as produced fines of lower than about 10 wt % at 10,000 psi closure stress.
    Type: Application
    Filed: October 30, 2013
    Publication date: April 30, 2015
    Applicant: Baker Hughes Incorporated
    Inventors: NAIMA BESTAOUI-SPURR, QI QU, CHRISTOPHER J. STEPHENSON
  • Publication number: 20120205100
    Abstract: Non-spherical particulates are useful in the stimulation of subterranean formations. A proppant pack composed of the non-spherical particulates exhibits greater porosity than a corresponding proppant pack composed of spherical particulates. In addition, the non-spherical particulates exhibit higher conductivity at higher stresses than spherical shaped particulates.
    Type: Application
    Filed: April 27, 2012
    Publication date: August 16, 2012
    Inventors: Phillip B. KAUFMAN, D.V. Satyanarayana GUPTA, Allan R. RICKARDS, Christopher J. STEPHENSON
  • Patent number: 8186434
    Abstract: Non-spherical particulates are useful in the stimulation of subterranean formations. A proppant pack composed of the non-spherical particulates exhibits greater porosity than a corresponding proppant pack composed of spherical particulates. Non-spherical particulates which are hollow and non-porous may further be at least partially filled with a chemical treatment agent including water-soluble or oil-soluble chemical treatment agents.
    Type: Grant
    Filed: May 24, 2011
    Date of Patent: May 29, 2012
    Assignee: Baker Hughes Incorporated
    Inventors: Phillip B. Kaufman, D. V. Satyanarayana Gupta, Allan R. Rickards, Christopher J. Stephenson
  • Publication number: 20110220355
    Abstract: Non-spherical particulates are useful in the stimulation of subterranean formations. A proppant pack composed of the non-spherical particulates exhibits greater porosity than a corresponding proppant pack composed of spherical particulates. Non-spherical particulates which are hollow and non-porous may further be at least partially filled with a chemical treatment agent including water-soluble or oil-soluble chemical treatment agents.
    Type: Application
    Filed: May 24, 2011
    Publication date: September 15, 2011
    Inventors: Phillip B. Kaufman, D.V. Satyanarayana Gupta, Allan R. Rickards, Christopher J. Stephenson
  • Patent number: 7950455
    Abstract: Non-spherical particulates are useful in the stimulation of subterranean formations. A proppant pack composed of the non-spherical particulates exhibits greater porosity than a corresponding proppant pack composed of spherical particulates. Non-spherical particulates which are hollow and non-porous may further be at least partially filled with a chemical treatment agent including water-soluble or oil-soluble chemical treatment agents.
    Type: Grant
    Filed: January 14, 2008
    Date of Patent: May 31, 2011
    Assignee: Baker Hughes Incorporated
    Inventors: Phillip B. Kaufman, D. V. Satyanarayana Gupta, Allan R. Rickards, Christopher J. Stephenson
  • Patent number: 7857057
    Abstract: Methods and compositions useful for subterranean formation treatments, such as hydraulic fracturing treatments and sand control that include porous materials. Such porous materials may be selectively configured porous material particles manufactured and/or treated with selected glazing materials, coating materials and/or penetrating materials to have desired strength and/or apparent density to fit particular downhole conditions for well treating such as hydraulic fracturing treatments and sand control treatments. Porous materials may also be employed in selected combinations to optimize fracture or sand control performance, and/or may be employed as relatively lightweight materials in liquid carbon dioxide-based well treatment systems.
    Type: Grant
    Filed: September 16, 2008
    Date of Patent: December 28, 2010
    Assignee: Baker Hughes Incorporated
    Inventors: Christopher J. Stephenson, Allan R. Rickards, Harold D. Brannon, Gino F. Di Lullo Arias, Philip James Rae
  • Publication number: 20090178807
    Abstract: Non-spherical particulates are useful in the stimulation of subterranean formations. A proppant pack composed of the non-spherical particulates exhibits greater porosity than a corresponding proppant pack composed of spherical particulates. In addition, the non-spherical particulates exhibit higher conductivity at higher stresses than spherical shaped particulates. Non-spherical particulates which are hollow and non-porous may further be at least partially filled with a chemical treatment agent including water-soluble or oil-soluble chemical treatment agents.
    Type: Application
    Filed: January 14, 2008
    Publication date: July 16, 2009
    Inventors: Phillip B. Kaufman, D.V. Satyanarayana Gupta, Allan R. Rickards, Christopher J. Stephenson
  • Publication number: 20090095473
    Abstract: Methods and compositions useful for subterranean formation treatments, such as hydraulic fracturing treatments and sand control that include porous materials. Such porous materials may be selectively configured porous material particles manufactured and/or treated with selected glazing materials, coating materials and/or penetrating materials to have desired strength and/or apparent density to fit particular downhole conditions for well treating such as hydraulic fracturing treatments and sand control treatments. Porous materials may also be employed in selected combinations to optimize fracture or sand control performance, and/or may be employed as relatively lightweight materials in liquid carbon dioxide-based well treatment systems.
    Type: Application
    Filed: September 16, 2008
    Publication date: April 16, 2009
    Inventors: Christopher J. Stephenson, Allan R. Rickards, Harold D. Brannon, Gino F. Di Lullo Arias, Philip James Rae
  • Patent number: 7213651
    Abstract: Methods for the treatment of subterranean wells involving injecting a first fracturing fluid into a formation, and then injecting at least a second fracturing fluid into the formation in order to create extended conductive channels through a formation are described. The fracturing fluids can be similar in density, viscosity, pH and the other related characteristics. Alternatively, the fracturing fluids can differ in their densities, viscosities, and pH, allowing for variations in the conductive channels formed. Propping agents can also be included in one or both of the injected fluids, further enhancing the conductive channels formed. The described methods aid in minimizing proppant flowback problems typically associated with hydraulic fracturing techniques.
    Type: Grant
    Filed: June 10, 2004
    Date of Patent: May 8, 2007
    Assignee: BJ Services Company
    Inventors: Harold D Brannon, William D Wood, Christopher J Stephenson
  • Patent number: 6749025
    Abstract: Methods and compositions useful for controlling sand production from subterranean formations that utilize relatively lightweight and/or substantially neutrally buoyant particles as particulate sand control material.
    Type: Grant
    Filed: May 25, 2000
    Date of Patent: June 15, 2004
    Assignee: BJ Services Company
    Inventors: Harold D. Brannon, Allan R. Rickards, Christopher J. Stephenson
  • Patent number: 6508305
    Abstract: Cement compositions including mixtures of substantially elastic material and cement that may be formulated exhibit reduced bulk volume shrinkage during curing as compared to conventional cement compositions. In one application, such cement compositions may be used for cementing in substantially closed system, such as the interior of a mold used for producing preformed concrete items.
    Type: Grant
    Filed: September 14, 2000
    Date of Patent: January 21, 2003
    Assignee: BJ Services Company
    Inventors: Harold D. Brannon, Christopher J. Stephenson, Robert L. Dillenbeck, Dan T. Mueller