Patents by Inventor S. Cromwell

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).

  • Methods and compositions for cementing pipe strings in well bores
    Patent number: 6350309
    Abstract: The present invention provides improved methods and compositions for cementing pipe strings in well bores. The methods of the invention are basically comprised of preparing a cement composition comprised of a hydraulic cement, an epoxy resin, a hardening agent for the epoxy resin and sufficient water to form a pumpable slurry. Thereafter, the cement composition is introduced into the annulus between a pipe string and a well bore and the cement composition is allowed to set into a resilient impermeable solid mass.
    Type: Grant
    Filed: February 13, 2001
    Date of Patent: February 26, 2002
    Assignee: Halliburton Energy Services, Inc.
    Inventors: Jiten Chatterji, Roger S. Cromwell, Robert D. Kuhlman, Bobby J. King
  • Sealing subterranean zones
    Publication number: 20020020530
    Abstract: The present invention provides improved compositions and methods of using the compositions for sealing subterranean zones. One composition of the invention is comprised of water, an aqueous rubber latex, an organophilic clay, sodium carbonate, an epoxy resin and a hardening agent for said epoxy resin.
    Type: Application
    Filed: August 30, 2001
    Publication date: February 21, 2002
    Inventors: James E. Griffith, Ricky A. Cox, Jiten Chatterji, Bobby J. King, Roger S. Cromwell, John L. Dennis
  • Sealing subterranean zones
    Publication number: 20020020529
    Abstract: The present invention provides improved compositions and methods of using the compositions for sealing subterranean zones. One composition of the invention is comprised of water, an aqueous rubber latex, an organophilic clay, sodium carbonate, an epoxy resin and a hardening agent for said epoxy resin.
    Type: Application
    Filed: August 30, 2001
    Publication date: February 21, 2002
    Inventors: James E. Griffith, Ricky A. Cox, Jiten Chatterji, Bobby J. King, Roger S. Cromwell, John L. Dennis
  • Sealing subterranean zones
    Publication number: 20020022579
    Abstract: The present invention provides improved compositions and methods of using the compositions for sealing subterranean zones. One composition of the invention is comprised of water, an aqueous rubber latex, an organophilic clay, sodium carbonate, an epoxy resin and a hardening agent for said epoxy resin.
    Type: Application
    Filed: August 30, 2001
    Publication date: February 21, 2002
    Inventors: James E. Griffith, Ricky A. Cox, Jiten Chatterji, Bobby J. King, Roger S. Cromwell, John L. Dennis
  • Resilient well cement compositions and methods
    Patent number: 6330917
    Abstract: The present invention provides improved compositions and methods for sealing pipe in a well bore. The compositions which harden into highly resilient solid masses having high strengths are basically comprised of a hydraulic cement, an aqueous rubber latex, an aqueous rubber latex stabilizing surfactant, an epoxy resin, an epoxy resin hardening agent and porous precipitated silica hydrophobicized with silicone oil.
    Type: Grant
    Filed: January 23, 2001
    Date of Patent: December 18, 2001
    Assignee: Halliburton Energy Services, Inc.
    Inventors: Jiten Chatterji, Roger S. Cromwell, Baireddy R. Reddy, Bobby J. King
  • Sealing subterranean zones
    Patent number: 6328106
    Abstract: The present invention provides improved compositions and methods of using the compositions for sealing subterranean zones. One composition of the invention is comprised of water, an aqueous rubber latex, an organophilic clay, sodium carbonate, an epoxy resin and a hardening agent for said epoxy resin.
    Type: Grant
    Filed: November 2, 2000
    Date of Patent: December 11, 2001
    Assignee: Halliburton Energy Services, Inc.
    Inventors: James E. Griffith, Ricky A. Cox, Jiten Chatterji, Bobby J. King, Roger S. Cromwell, John L. Dennis, Jr.
  • Methods of sealing pipe strings in disposal wells
    Patent number: 6321841
    Abstract: Improved methods of completing wells penetrating subterranean corrosive fluid disposal zones are provided. The methods basically comprise the steps of preparing a pumpable, water compatible, corrosion resistant, hardenable epoxy sealing composition comprised of a hardenable epoxide containing liquid and a hardening agent, placing the epoxy sealing composition in the annulus between a string of pipe and a well bore penetrating a disposal zone and allowing the epoxy sealing composition to harden.
    Type: Grant
    Filed: February 21, 2001
    Date of Patent: November 27, 2001
    Assignee: Halliburton Energy Services, Inc.
    Inventors: Larry S. Eoff, Jiten Chatterji, Roger S. Cromwell, Bobby J. King
  • Cementing wells with crack and shatter resistant cement
    Patent number: 6308777
    Abstract: Improved cement compositions and methods of cementing subterranean zones penetrated by well bores are provided. In accordance with the methods, a crack and shatter resistant cement composition is introduced into a subterranean zone by way of the well bore penetrating it comprised of a hydraulic cement, sufficient hydrophilic fibers to make the cement composition crack and shatter resistant upon setting and sufficient water to form a pumpable slurry. Thereafter, the cement composition is allowed to set in the subterranean zone.
    Type: Grant
    Filed: October 13, 1999
    Date of Patent: October 30, 2001
    Assignee: Halliburton Energy Services, Inc.
    Inventors: Jiten Chatterji, Roger S. Cromwell, Ronald J. Crook, Frank Zamora
  • Sealing subterranean zones
    Publication number: 20010032723
    Abstract: The present invention provides improved compositions and methods of using the compositions for sealing subterranean zones. The compositions are basically comprised of water, an aqueous rubber latex, an organophillic clay, sodium carbonate, an epoxy resin and a hardening agent for said epoxy resin.
    Type: Application
    Filed: May 7, 2001
    Publication date: October 25, 2001
    Inventors: Jiten Chatterji, Roger S. Cromwell, Bobby J. King
  • Defoaming compositions and methods
    Patent number: 6297202
    Abstract: The present invention provides improved defoaming compositions and methods. The compositions of the invention are basically comprised of polypropylene glycol, particulate hydrophobic silica and a liquid diluent.
    Type: Grant
    Filed: January 4, 1999
    Date of Patent: October 2, 2001
    Assignee: Halliburton Energy Services, Inc.
    Inventors: Jiten Chatterji, Roger S. Cromwell, Bobby J. King
  • CEMENTING WELLS WITH CRACK AND SHATTER RESISTANT CEMENT
    Publication number: 20010018973
    Abstract: Improved cement compositions and methods of cementing subterranean zones penetrated by well bores are provided. In accordance with the methods, a crack and shatter resistant cement composition is introduced into a subterranean zone by way of the well bore penetrating it comprised of a hydraulic cement, sufficient hydrophilic fibers to make the cement composition crack and shatter resistant upon setting and sufficient water to form a pumpable slurry. Thereafter, the cement composition is allowed to set in the subterranean zone.
    Type: Application
    Filed: October 13, 1999
    Publication date: September 6, 2001
    Inventors: JITEN CHATTERJI, ROGER S. CROMWELL, RONALD J. CROOK, FRANK ZAMORA
  • Heat insulation compositions and methods
    Patent number: 6279652
    Abstract: The present invention provides heat insulation compositions and methods. The compositions are basically comprised of an epoxide containing liquid, an insulating material and an epoxide hardening agent.
    Type: Grant
    Filed: September 23, 1998
    Date of Patent: August 28, 2001
    Assignee: Halliburton Energy Services, Inc.
    Inventors: Jiten Chatterji, David D. Onan, Roger S. Cromwell
  • Sealing subterranean zones
    Patent number: 6271181
    Abstract: The present invention provides improved compositions and methods of using the compositions for sealing subterranean zones. The compositions are basically comprised of water, an aqueous rubber latex, an organophillic clay, sodium carbonate, an epoxy resin and a hardening agent for said epoxy resin.
    Type: Grant
    Filed: February 4, 1999
    Date of Patent: August 7, 2001
    Assignee: Halliburton Energy Services, Inc.
    Inventors: Jiten Chatterji, Roger S. Cromwell, Bobby J. King
  • Methods and compositions for cementing pipe strings in well bores
    Publication number: 20010009133
    Abstract: The present invention provides improved methods and compositions for cementing pipe strings in well bores. The methods of the invention are basically comprised of preparing a cement composition comprised of a hydraulic cement, an epoxy resin, a hardening agent for the epoxy resin and sufficient water to form a pumpable slurry. Thereafter, the cement composition is introduced into the annulus between a pipe string and a well bore and the cement composition is allowed to set into a resilient impermeable solid mass.
    Type: Application
    Filed: February 13, 2001
    Publication date: July 26, 2001
    Inventors: Jiten Chatterji, Roger S. Cromwell, Robert D. Kuhlman, Bobby J. King
  • Methods and compositions for grouting heat exchange pipe
    Patent number: 6258160
    Abstract: The present invention provides improved methods and compositions for grouting heat exchange pipe in a hole or trench in the ground. The grouting compositions of the invention have quick set and high thermal conductivity properties and are basically comprised of an amorphous silica material, an alkaline earth metal oxide or hydroxide, a water swellable clay and water present in an amount sufficient to form a slurry. The compositions optionally also include a set retarder and a thermal conductivity increasing agent.
    Type: Grant
    Filed: September 7, 1999
    Date of Patent: July 10, 2001
    Assignee: Halliburton Energy Services, Inc.
    Inventors: Jiten Chatterji, Roger S. Cromwell, W. Andrew Liao, Jason G. Bell
  • Resilient well cement compositions and methods
    Publication number: 20010004936
    Abstract: The present invention provides improved compositions and methods for sealing pipe in a well bore. The compositions which harden into highly resilient solid masses having high strengths are basically comprised of a hydraulic cement, an aqueous rubber latex, an aqueous rubber latex stabilizing surfactant and silica hydrophobicized with silicon oil.
    Type: Application
    Filed: January 23, 2001
    Publication date: June 28, 2001
    Inventors: Jiten Chatterji, Roger S. Cromwell, Baireddy R. Reddy, Bobby J. King
  • Methods and compositions for cementing pipe strings in well bores
    Patent number: 6244344
    Abstract: The present invention provides improved methods and compositions for cementing pipe strings in well bores. The methods of the invention are basically comprised of preparing a cement composition comprised of a hydraulic cement, an epoxy resin, a hardening agent for the epoxy resin and sufficient water to form a pumpable slurry. Thereafter, the cement composition is introduced into the annulus between a pipe string and a well bore and the cement composition is allowed to set into a resilient impermeable solid mass.
    Type: Grant
    Filed: February 9, 1999
    Date of Patent: June 12, 2001
    Assignee: Halliburton Energy Services, Inc.
    Inventors: Jiten Chatterji, Roger S. Cromwell, Robert D. Kuhlman, Bobby J. King
  • Resilient well cement compositions and methods
    Patent number: 6234251
    Abstract: The present invention provides improved compositions and methods for sealing pipe in a well bore. The compositions which harden into highly resilient solid masses having high strengths are basically comprised of a hydraulic cement, an aqueous rubber latex, an aqueous rubber latex stabilizing surfactant and silica hydrophobicized with silicon oil.
    Type: Grant
    Filed: February 22, 1999
    Date of Patent: May 22, 2001
    Assignee: Halliburton Energy Services, Inc.
    Inventors: Jiten Chatterji, Roger S. Cromwell, Baireddy R. Reddy, Bobby J. King
  • Well sealing compositions and methods
    Patent number: 6231664
    Abstract: The present invention provides improved well sealing compositions and methods. The compositions are basically comprised of slag cement, water, a slag cement set activator, a hardenable epoxide containing material and an epoxide containing material hardening agent.
    Type: Grant
    Filed: March 8, 2000
    Date of Patent: May 15, 2001
    Assignee: Halliburton Energy Services, Inc.
    Inventors: Jiten Chatterji, David D. Onan, Roger S. Cromwell, Bobby J. King
  • Methods of cementing subterranean zones
    Patent number: 6227294
    Abstract: Improved methods of cementing in a subterranean zone penetrated by a well bore are provided. The methods are basically comprised of the steps of preparing a foamed cement composition comprised of hydraulic cement, a non-dispersing set retarder, sufficient water to form a slurry, sufficient gas to foam the slurry and a foaming and foam stabilizing surfactant mixture present in an amount sufficient to facilitate the formation of the foam and stabilize the foamed cement composition.
    Type: Grant
    Filed: May 12, 2000
    Date of Patent: May 8, 2001
    Assignee: Halliburton Energy Services, Inc.
    Inventors: Jiten Chatterji, Roger S. Cromwell, Bobby J. King, Dennis W. Gray, Darrell C. Brenneis