Patents by Inventor John T. Pursley

John T. Pursley 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: 10577531
    Abstract: Methods and compositions comprising an emulsion or a microemulsion and a polymer for use in an oil and/or gas well are provided. In some embodiments, the emulsion or the microemulsion comprises water, a solvent, and a surfactant, and optionally, one or more additives. In certain embodiments, the polymer comprises a copolymer comprising an acrylamide.
    Type: Grant
    Filed: September 17, 2015
    Date of Patent: March 3, 2020
    Assignee: Flotek Chemistry, LLC
    Inventors: John T. Pursley, Glenn S. Penny, Charles Earl Hammond, David Germack, Nicole Mast, Deepankar Biswas, Arun Kharghoria
  • Patent number: 9951264
    Abstract: A foam generating surfactant formulation includes a betaine, an alpha-olefin sulfonate and a nanofluid. The betaine is preferably a cocamidopropyl betaine or laurel betaine. The alpha-olefin sulfonate is preferably an anionic surfactant having between 8 and 18 carbon atoms per molecule. The nanofluid is preferably an oil-in-water nanofluid that includes an emulsifying surfactant, a solvent, a co-solvent and water. The addition of the nanofluid increases the thermal stability and salt resistance of the foam generating surfactant.
    Type: Grant
    Filed: December 15, 2016
    Date of Patent: April 24, 2018
    Assignee: Flotek Chemistry, LLC
    Inventors: Glenn S. Penny, Yu Bian, John T. Pursley
  • Patent number: 9884988
    Abstract: Methods and compositions comprising an emulsion or a microemulsion for use in various aspects of the life cycle of an oil and/or gas well are provided. In some embodiments, the emulsion or the microemulsion comprises water, a solvent, and a surfactant, and optionally, one or more additives.
    Type: Grant
    Filed: March 14, 2014
    Date of Patent: February 6, 2018
    Assignee: Flotek Chemistry, LLC
    Inventors: Keith Ingram Dismuke, Randal M. Hill, Andrei Zelenev, James Silas, David Germack, Lakia M. Champagne, Charles Earl Hammond, John T. Pursley, Glenn S. Penny, Michael A. Bryan, Maria Elizabeth Green, Monica Smith-Gonzalez, Melinda Soeung, Hasnain Saboowala, Angus Fursdon-Welsh, Nathan L. Lett, Nicole Mast, Joby Hughes
  • Publication number: 20170190953
    Abstract: A foam generating surfactant formulation includes a betaine, an alpha-olefin sulfonate and a nanofluid. The betaine is preferably a cocamidopropyl betaine or laurel betaine. The alpha-olefin sulfonate is preferably an anionic surfactant having between 8 and 18 carbon atoms per molecule. The nanofluid is preferably an oil-in-water nanofluid that includes an emulsifying surfactant, a solvent, a co-solvent and water. The addition of the nanofluid increases the thermal stability and salt resistance of the foam generating surfactant.
    Type: Application
    Filed: December 15, 2016
    Publication date: July 6, 2017
    Applicant: Flotek Chemistry, LLC
    Inventors: Glenn S. Penny, Yu Bian, John T. Pursley
  • Publication number: 20160032172
    Abstract: Methods and compositions comprising an emulsion or a microemulsion and a polymer for use in an oil and/or gas well are provided. In some embodiments, the emulsion or the microemulsion comprises water, a solvent, and a surfactant, and optionally, one or more additives. In certain embodiments, the polymer comprises a copolymer comprising an acrylamide.
    Type: Application
    Filed: September 17, 2015
    Publication date: February 4, 2016
    Applicant: CESI Chemical, Inc.
    Inventors: John T. Pursley, Glenn S. Penny, Charles Earl Hammond, David Germack, Nicole Mast, Deepankar Biswas, Arun Kharghoria
  • Publication number: 20150247381
    Abstract: Systems and methods for enhancing production of hydrocarbons from oil and/or gas wells are generally described. In some cases, an oil and/or gas well may contain deposits of impurities (e.g., scale, migrating fines, paraffin, and/or asphaltenes) that obstruct the flow of fluid through the well and thereby limit the recovery of hydrocarbons from the well. A method of enhancing oil and/or gas recovery from such a well may comprise coupling acoustic and/or ultrasonic energy to a fluid stream comprising an emulsion or a microemulsion being injected into the well. The coupled flow of an emulsion or a microemulsion may cause the deposits to break up and be removed from the well, thus enhancing fluid flow through the well and increasing the productivity of the well.
    Type: Application
    Filed: February 27, 2015
    Publication date: September 3, 2015
    Applicant: CESI Chemical, Inc.
    Inventor: John T. Pursley
  • Publication number: 20150105302
    Abstract: The present invention generally provides systems, methods, and compositions comprising an emulsion or a microemulsion and chlorine dioxide for use in oil and/or gas wells. In some embodiments, the systems, methods, and/or compositions comprise reducing the viscosity a fluid comprising a polymer, wherein the fluid was utilized in the recovery of oil and/or gas from the oil and/or gas well.
    Type: Application
    Filed: October 8, 2014
    Publication date: April 16, 2015
    Applicant: CESI Chemical, Inc.
    Inventors: John T. Pursley, Glenn S. Penny, Charles Earl Hammond
  • Publication number: 20140338911
    Abstract: Methods and compositions comprising an emulsion or a microemulsion for use in various aspects of the life cycle of an oil and/or gas well are provided. In some embodiments, the emulsion or the microemulsion comprises water, a solvent, and a surfactant, and optionally, one or more additives.
    Type: Application
    Filed: March 14, 2014
    Publication date: November 20, 2014
    Applicant: CESI Chemical Inc.
    Inventors: Keith Ingram Dismuke, Randal M. Hill, Andrei Zelenev, James Silas, David Germack, Lakia M. Champagne, Charles Earl Hammond, John T. Pursley, Glenn S. Penny, Michael A. Bryan, Maria Elizabeth Green, Monica Gonzalez-Roldan, Melinda Soeung, Hasnain Saboowala, Angus Fursdon-Welsh, Nathan L. Lett, Nicole Mast, Joby Hughes
  • Patent number: 7544639
    Abstract: Disclosed is a method for the treatment of hydrogen sulfide. The method preferably includes forming a solvent-surfactant blend, preparing a microemulsion by combining the solvent-surfactant blend with a carrier fluid and contacting the hydrogen sulfide with the microemulsion. In preferred embodiments, the solvent-surfactant blend includes a surfactant and a solvent selected from the group consisting of terpenes and alkyl or aryl esters of short chain alcohols.
    Type: Grant
    Filed: May 5, 2005
    Date of Patent: June 9, 2009
    Assignee: CESt Chemical
    Inventors: John T. Pursley, David L. Holcomb, Glenn S. Penny
  • Patent number: 7380606
    Abstract: Disclosed is a microemulsion well treatment microemulsion that is formed by combining a solvent-surfactant blend with a carrier fluid. In preferred embodiments, the solvent-surfactant blend includes a surfactant and a solvent selected from the group consisting of terpenes and alkyl or aryl esters of short chain alcohols. The disclosed well treatment microemulsion can be used in well remediation, stimulation and hydrogen sulfide mitigation operations. Additionally, the well treatment microemulsion can be used in the production of benzothiophenes through interaction with hydrogen sulfide.
    Type: Grant
    Filed: February 28, 2003
    Date of Patent: June 3, 2008
    Assignee: CESI Chemical, a Flotek Company
    Inventors: John T. Pursley, David L. Holcomb, Glenn S. Penny
  • Publication number: 20030166472
    Abstract: Disclosed is a microemulsion well treatment microemulsion that is formed by combining a solvent-surfactant blend with a carrier fluid. In preferred embodiments, the solvent-surfactant blend includes a surfactant and a solvent selected from the group consisting of terpenes and alkyl or aryl esters of short chain alcohols. The disclosed well treatment microemulsion can be used in well remediation, stimulation and hydrogen sulfide mitigation operations. Additionally, the well treatment microemulsion can be used in the production of benzothiophenes through interaction with hydrogen sulfide.
    Type: Application
    Filed: February 28, 2003
    Publication date: September 4, 2003
    Applicant: CESI Chemical, a Flotek Company
    Inventors: John T. Pursley, David L. Holcomb, Glenn S. Penny