Patents by Inventor Roger S. Cromwell

Roger S. Cromwell 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: 8940670
    Abstract: Methods and compositions that comprise sub-micron alumina for accelerating setting of a cement composition. An embodiment includes a method of cementing in a subterranean formation. The method may comprise introducing a cement composition into the subterranean formation, wherein the cement composition comprises hydraulic cement, sub-micron alumina, and water. The method further may comprise allowing the cement composition to set in the subterranean formation. Another embodiment includes a cement composition that may comprise hydraulic cement, sub-micron alumina, and water.
    Type: Grant
    Filed: March 30, 2012
    Date of Patent: January 27, 2015
    Assignee: Halliburton Energy Services, Inc.
    Inventors: Rahul Chandrakant Patil, B. Raghava Reddy, Abhimanyu Deshpande, Christopher L. Gordon, Craig W. Roddy, Jiten Chatterji, Roger S. Cromwell
  • Patent number: 8476203
    Abstract: Methods and compositions that comprise sub-micron alumina for accelerating setting of a cement composition. An embodiment includes a method of cementing in a subterranean formation. The method may comprise introducing a cement composition into the subterranean formation, wherein the cement composition comprises hydraulic cement, sub-micron alumina, and water. The method further may comprise allowing the cement composition to set in the subterranean formation. Another embodiment includes a cement composition that may comprise hydraulic cement, sub-micron alumina, and water.
    Type: Grant
    Filed: January 4, 2010
    Date of Patent: July 2, 2013
    Assignee: Halliburton Energy Services, Inc.
    Inventors: Rahul Chandrakant Patil, B. Raghava Reddy, Abhimanyu Deshpande, Christopher L. Gordon, Craig W. Roddy, Jiten Chatterji, Roger S. Cromwell
  • Publication number: 20120190769
    Abstract: Methods and compositions that comprise sub-micron alumina for accelerating setting of a cement composition. An embodiment includes a method of cementing in a subterranean formation. The method may comprise introducing a cement composition into the subterranean formation, wherein the cement composition comprises hydraulic cement, sub-micron alumina, and water. The method further may comprise allowing the cement composition to set in the subterranean formation. Another embodiment includes a cement composition that may comprise hydraulic cement, sub-micron alumina, and water.
    Type: Application
    Filed: March 30, 2012
    Publication date: July 26, 2012
    Applicant: HALLIBURTON ENERGY SERVICES, INC.
    Inventors: Rahul Chandrakant Patil, B. Raghava Reddy, Abhimanyu Deshpande, Christopher L. Gordon, Craig W. Roddy, Jiten Chatterji, Roger S. Cromwell
  • Publication number: 20100095871
    Abstract: Methods and compositions that comprise sub-micron alumina for accelerating setting of a cement composition. An embodiment includes a method of cementing in a subterranean formation. The method may comprise introducing a cement composition into the subterranean formation, wherein the cement composition comprises hydraulic cement, sub-micron alumina, and water. The method further may comprise allowing the cement composition to set in the subterranean formation. Another embodiment includes a cement composition that may comprise hydraulic cement, sub-micron alumina, and water.
    Type: Application
    Filed: January 4, 2010
    Publication date: April 22, 2010
    Applicant: HALLIBURTON ENERGY SERVICES, INC.
    Inventors: Rahul Chandrakant Patil, B. Raghava Reddy, Abhimanyu Deshpande, Christopher L. Gordon, Craig W. Roddy, Jiten Chatterji, Roger S. Cromwell
  • Patent number: 7569108
    Abstract: The prevention of latex inversion in saltwater cement compositions for use in subterranean formations by inclusion of a combination of latex stabilizers and associated methods of cementing. Saltwater cement compositions comprising saltwater, a cement, a latex, a first latex stabilizer comprising a surfactant having the formula: R—O—(OCH2CH2)mXM wherein R is an alkyl group having in the range of from about 10 carbons to about 20 carbons, m is an integer in the range of from about 10 to about 40, X is OSO3 or SO3, and M is a compatible cation, and a second latex stabilizer comprising an alcohol ether sulfate having the formula: R1—O—(OCH2CH2)nOSO3M wherein R1 is an alkyl group having in the range of from about 4 carbons to about 12 carbons, n is an integer in the range of from about 1 to about 10, and M is a compatible cation.
    Type: Grant
    Filed: September 28, 2006
    Date of Patent: August 4, 2009
    Assignee: Halliburton Energy Services, Inc.
    Inventors: Jiten Chatterji, Bobby J. King, D. Chad Brenneis, Roger S. Cromwell
  • Patent number: 7413014
    Abstract: Methods of cementing and low density foamed cement compositions therefor are disclosed. A low density foamed cement composition of the invention comprises fly ash comprising calcium oxide or calcium hydroxide, water present in an amount sufficient to form a slurry, a foaming and foam stabilizing surfactant or a mixture of surfactants present in an amount sufficient to facilitate foam and stabilize the foamed cement composition, and sufficient gas to foam the foamed cement composition.
    Type: Grant
    Filed: December 19, 2003
    Date of Patent: August 19, 2008
    Assignee: Halliburton Energy Services, Inc.
    Inventors: Jiten Chatterji, Roger S. Cromwell, Bobby J. King, D. Chad Brenneis, Brent P. Balcer, Barry L. Peiser, Don M. Everett
  • Patent number: 7404855
    Abstract: Resilient cement compositions and methods of cementing using the compositions are disclosed. A resilient cement composition of the invention comprises hydraulic cement, an aqueous rubber latex and a rubber latex stabilizing surfactant comprising an iso-dodecyl alcohol ether sulfonate ethoxylated with from about 10 to about 20 moles of ethylene oxide.
    Type: Grant
    Filed: February 4, 2005
    Date of Patent: July 29, 2008
    Assignee: Halliburton Energy Services, Inc.
    Inventors: Jiten Chatterji, D. Chad Brenneis, Roger S. Cromwell, Bobby J. King
  • Patent number: 7363977
    Abstract: The prevention of latex inversion in saltwater cement compositions for use in subterranean formations by inclusion of a combination of latex stabilizers and associated methods of cementing. Saltwater cement compositions comprising saltwater, a cement, a latex, a first latex stabilizer comprising a surfactant having the formula: R—O—(OCH2CH2)mXM wherein R is an alkyl group having in the range of from about 10 carbons to about 20 carbons, m is an integer in the range of from about 10 to about 40, X is OSO3 or SO3, and M is a compatible cation, and a second latex stabilizer comprising an alcohol ether sulfate having the formula: R1—O—(OCH2CH2)nOSO3M wherein R1 is an alkyl group having in the range of from about 4 carbons to about 12 carbons, n is an integer in the range of from about 1 to about 10, and M is a compatible cation.
    Type: Grant
    Filed: September 28, 2006
    Date of Patent: April 29, 2008
    Assignee: Halliburton Energy Services, Inc.
    Inventors: Jiten Chatterji, Bobby J. King, D. Chad Brenneis, Roger S. Cromwell
  • Publication number: 20080078307
    Abstract: The prevention of latex inversion in saltwater cement compositions for use in subterranean formations by inclusion of a combination of latex stabilizers and associated methods of cementing. Saltwater cement compositions comprising saltwater, a cement, a latex, a first latex stabilizer comprising a surfactant having the formula: R—O—(OCH2CH2)mXM wherein R is an alkyl group having in the range of from about 10 carbons to about 20 carbons, m is an integer in the range of from about 10 to about 40, X is OSO3 or SO3, and M is a compatible cation, and a second latex stabilizer comprising an alcohol ether sulfate having the formula: R1—O—(OCH2CH2)nOSO3M wherein R1 is an alkyl group having in the range of from about 4 carbons to about 12 carbons, n is an integer in the range of from about 1 to about 10, and M is a compatible cation.
    Type: Application
    Filed: September 28, 2006
    Publication date: April 3, 2008
    Inventors: Jiten Chatterji, Bobby J. King, D. Chad Brenneis, Roger S. Cromwell
  • Publication number: 20080078550
    Abstract: The prevention of latex inversion in saltwater cement compositions for use in subterranean formations by inclusion of a combination of latex stabilizers and associated methods of cementing. Saltwater cement compositions comprising saltwater, a cement, a latex, a first latex stabilizer comprising a surfactant having the formula: R—O—(OCH2CH2)mXM wherein R is an alkyl group having in the range of from about 10 carbons to about 20 carbons, m is an integer in the range of from about 10 to about 40, X is OSO3 or SO3, and M is a compatible cation, and a second latex stabilizer comprising an alcohol ether sulfate having the formula: R1—O—(OCH2CH2)nOSO3M wherein R1 is an alkyl group having in the range of from about 4 carbons to about 12 carbons, n is an integer in the range of from about 1 to about 10, and M is a compatible cation.
    Type: Application
    Filed: September 28, 2006
    Publication date: April 3, 2008
    Inventors: Jiten Chatterji, Bobby J. King, D. Chad Brenneis, Roger S. Cromwell
  • Patent number: 7296626
    Abstract: Methods for cementing and cement compositions are provided, wherein the cement composition comprises cementitious material and an aqueous suspension of zeolite and a chromate reducing agent.
    Type: Grant
    Filed: November 8, 2005
    Date of Patent: November 20, 2007
    Assignee: Halliburton Energy Services, Inc.
    Inventors: Karen Luke, Roger S. Cromwell
  • Patent number: 7255170
    Abstract: Exemplary embodiments relate to cementing operations and, more particularly, to foamed cement compositions, foaming and stabilizing additives, and associated methods. A foaming and stabilizing additive, that comprises a mixture of an alkali salt of an alkyl ether sulfate surfactant, wherein the alkali salt of the alkyl ether sulfate surfactant comprises a mixture of an alkali salt of a C6-10 alkyl ether sulfate surfactant, and an alkali salt of a C2-4 alkyl ether sulfate surfactant, an alkyl or alkene amidopropyl betaine surfactant, an alkyl or alkene amidopropyl dimethylamine oxide surfactant, sodium chloride, and water, is provided. Also provided are foamed cement compositions that comprise the foaming and stabilizing additive, and associated methods.
    Type: Grant
    Filed: May 19, 2005
    Date of Patent: August 14, 2007
    Assignee: Halliburton Energy Services, Inc.
    Inventors: Jiten Chatterji, D. Chad Brenneis, Bobby J. King, Roger S. Cromwell, Dennis W. Gray
  • Patent number: 7229492
    Abstract: Cement compositions that include improved lost circulation materials are provided. In certain exemplary embodiments, the improved lost circulation materials include inelastic particles of polyethylene, polystyrene, and/or polypropylene. Optionally, the cement compositions also may include additives such as fly ash, a surfactant, a dispersant, a fluid loss control additive, a conventional lost circulation material, an accelerator, a retarder, a salt, a mica, fiber, a formation-conditioning agent, fumed silica, bentonite, expanding additives, microspheres, weighting materials, or a defoamer.
    Type: Grant
    Filed: February 23, 2005
    Date of Patent: June 12, 2007
    Assignee: Halliburton Energy Services, Inc.
    Inventors: Jiten Chatterji, Bobby J. King, Roger S. Cromwell, D. Chad Brenneis
  • Patent number: 7174961
    Abstract: Methods of using cement compositions that comprise basalt fibers in subterranean formations are provided. An example of such a method may comprise providing a cement composition that comprises water, a hydraulic cement, and a plurality of basalt fibers; introducing the cement composition into a subterranean formation; allowing the cement composition to set therein. Also provided are methods of cementing a pipe string in a well bore and methods of enhancing the compressive strength of a cement composition.
    Type: Grant
    Filed: March 25, 2005
    Date of Patent: February 13, 2007
    Assignee: Halliburton Energy Services, Inc.
    Inventors: Jiten Chatterji, Roger S. Cromwell, D. Chad Brenneis
  • Patent number: 7022755
    Abstract: Resilient cement compositions and methods of cementing using the compositions are disclosed. A resilient cement composition of the invention comprises hydraulic cement, an aqueous rubber latex and a rubber latex stabilizing surfactant comprising an iso-dodecyl alcohol ether sulfonate ethoxylated with from about 10 to about 20 moles of ethylene oxide.
    Type: Grant
    Filed: February 4, 2005
    Date of Patent: April 4, 2006
    Assignee: Halliburton Energy Services, Inc.
    Inventors: Jiten Chatterji, D. Chad Brenneis, Roger S. Cromwell, Bobby J. King
  • Patent number: 7013975
    Abstract: The present invention relates to foamed cement slurries, additives and methods. A foamed cement slurry of the invention comprises a hydraulic cement, sufficient water to form a slurry, sufficient gas to form a foam and an environmentally benign foaming and stabilizing additive comprising a mixture of an ammonium salt of an alkyl ether sulfate surfactant, a cocoamidopropyl betaine surfactant, a cocoamidopropyl dimethylamine oxide surfactant, sodium chloride and water.
    Type: Grant
    Filed: July 26, 2004
    Date of Patent: March 21, 2006
    Assignee: Halliburton Energy Services, Inc.
    Inventors: Jiten Chatterji, D. Chad Brenneis, Bobby J. King, Roger S. Cromwell, Dennis W. Gray
  • Patent number: 7008479
    Abstract: Methods of cementing in subterranean zones, improved cement compositions and improved additives are provided. The compositions are basically comprised of a hydraulic cement, sufficient water to form a slurry and an additive for providing improved rheology, fluid loss control and set retardation comprised of carboxymethylhydroxyethylcellulose having in the range of from about 0.62 to about 2.21 moles of hydroxyethyl substitution and in the range of from about 0.44 to about 0.52 degrees of carboxymethyl substitution and a 2% by weight aqueous solution of the carboxymethylhydroxyethylcellulose has a Höppler viscosity in the range of from about 55 mPa.s to about 359 mPa.s.
    Type: Grant
    Filed: May 5, 2004
    Date of Patent: March 7, 2006
    Assignee: Halliburton Energy Services, Inc.
    Inventors: Jiten Chatterji, Roger S. Cromwell, Darrell C. Brenneis, Bobby J. King
  • Patent number: 6982000
    Abstract: The present invention provides improved cement compositions comprising hydraulic cement, silica hydrophobicized with a mixture of organosilicon compounds and water.
    Type: Grant
    Filed: March 25, 2005
    Date of Patent: January 3, 2006
    Assignee: Halliburton Energy Services, Inc.
    Inventors: Jiten Chatterji, Roger S. Cromwell, Craig W. Roddy
  • Patent number: 6979366
    Abstract: The present invention provides methods of cementing pipe in well bores and low density cement compositions having enhanced compressive, tensile and bond strengths upon setting. The composition of the invention are basically comprised of a hydraulic cement, sufficient water to form a slurry and hollow glass microspheres surface treated with a mixture of organosilane coupling agents present in an amount sufficient to produce a cement composition density in the range of from about 6 to about 12 pounds per gallon.
    Type: Grant
    Filed: December 10, 2002
    Date of Patent: December 27, 2005
    Assignee: Halliburton Energy Services, Inc.
    Inventors: Jiten Chatterji, Roger S. Cromwell, Darrel C. Brenneis, Bobby J. King
  • Patent number: 6978834
    Abstract: The present invention provides improved methods of cementing and cement compositions. A cement composition of the invention comprises hydraulic cement, silica hydrophobicized with a mixture of organosilicon compounds and water which upon hardening has high shear bond strength.
    Type: Grant
    Filed: May 26, 2004
    Date of Patent: December 27, 2005
    Assignee: Halliburton Energy Services, Inc.
    Inventors: Jiten Chatterji, Roger S. Cromwell, Craig W. Roddy