Patents by Inventor DeWitt Knox

DeWitt Knox 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 thermally stable aqueous borate-based cross-linking suspensions for treatment of subterranean formations
    Patent number: 11518930
    Abstract: An aqueous cross-linking suspension composition having brine, water-soluble suspending agent and borate cross-linker in a single package and methods for using the package composition for increasing the efficiency of fracturing subterranean formations and effectively delivering borate cross-linkers.
    Type: Grant
    Filed: July 14, 2020
    Date of Patent: December 6, 2022
    Assignee: Univar USA Inc.
    Inventors: Abdelaziz Rahy, DeWitt Knox, Mohand Melbouci
  • Enhanced proppant transport for hydraulic fracturing
    Patent number: 11319482
    Abstract: The present disclosure relates to compositions and methods for recovery of hydrocarbons from subterranean formations. The compositions may be dry blends of synthetic and naturally derived polymers. The blend compositions may also be produced as high activity solvent-based fluidized polymer suspensions. Either in dry or liquid forms, the blend compositions provide higher proppant carrying capacity in comparison to conventional solutions, as well as improved breakability and crosslinking capacity.
    Type: Grant
    Filed: September 1, 2020
    Date of Patent: May 3, 2022
    Assignee: Univar USA Inc.
    Inventors: Abdelaziz Rahy, DeWitt Knox, Mohand Melbouci, Christopher Alameddin, Joel F. Siegel, Benjamin J. Poppel, Leendert Weijers, Ronald Gusek
  • ENHANCED PROPPANT TRANSPORT FOR HYDRAULIC FRACTURING
    Publication number: 20200392400
    Abstract: The present disclosure relates to compositions and methods for recovery of hydrocarbons from subterranean formations. The compositions may be dry blends of synthetic and naturally derived polymers. The blend compositions may also be produced as high activity solvent-based fluidized polymer suspensions. Either in dry or liquid forms, the blend compositions provide higher proppant carrying capacity in comparison to conventional solutions, as well as improved breakability and crosslinking capacity.
    Type: Application
    Filed: September 1, 2020
    Publication date: December 17, 2020
    Inventors: Abdelaziz Rahy, DeWitt Knox, Mohand Melbouci, Christopher Alameddin, Joel F. Siegel, Benjamin J. Poppel, Leendert Weijers, Ronald Gusek
  • METHODS AND THERMALLY STABLE AQUEOUS BORATE-BASED CROSS-LINKING SUSPENSIONS FOR TREATMENT OF SUBTERRANEAN FORMATIONS
    Publication number: 20200347287
    Abstract: An aqueous cross-linking suspension composition having brine, water-soluble suspending agent and borate cross-linker in a single package and methods for using the package composition for increasing the efficiency of fracturing subterranean formations and effectively delivering borate cross-linkers.
    Type: Application
    Filed: July 14, 2020
    Publication date: November 5, 2020
    Applicant: Univar USA Inc.
    Inventors: Abdelaziz Rahy, DeWitt Knox, Mohand Melbouci
  • Enhanced proppant transport for hydraulic fracturing
    Patent number: 10793770
    Abstract: A dry composition of dry polyacrylamide and dry guar; or a liquid suspension made from the dry composition for treating subterranean formations and methods for enhancing proppant transport in fracturing fluids using the composition.
    Type: Grant
    Filed: June 13, 2016
    Date of Patent: October 6, 2020
    Inventors: Abdelaziz Rahy, DeWitt Knox, Mohand Melbouci, Christopher Alameddin, Joel F. Siegel, Benjamin J. Poppel, Leendert Weijers, Ronald Gusek
  • Methods and thermally stable aqueous borate-based cross-linking suspensions for treatment of subterranean formations
    Patent number: 10787605
    Abstract: An aqueous cross-linking suspension composition having brine, water-soluble suspending agent and borate cross-linker in a single package and methods for using the package composition for increasing the efficiency of fracturing subterranean formations and effectively delivering borate cross-linkers.
    Type: Grant
    Filed: April 10, 2017
    Date of Patent: September 29, 2020
    Assignee: Univar USA Inc.
    Inventors: Abdelaziz Rahy, DeWitt Knox, Mohand Melbouci
  • Methods and Thermally Stable Aqueous Borate-Based Cross-Linking Suspensions for Treatment of Subterranean Formations
    Publication number: 20190161671
    Abstract: An aqueous cross-linking suspension composition having brine, water-soluble suspending agent and borate cross-linker in a single package and methods for using the package composition for increasing the efficiency of fracturing subterranean formations and effectively delivering borate cross-linkers.
    Type: Application
    Filed: April 10, 2017
    Publication date: May 30, 2019
    Inventors: Abdelaziz Rahy, DeWitt Knox, Mohand Melbouci
  • Enhanced Proppant Transport for Hydraulic Fracturing
    Publication number: 20180155615
    Abstract: A dry composition of dry polyacrylamide and dry guar; or a liquid suspension made from the dry composition for treating subterranean formations and methods for enhancing proppant transport in fracturing fluids using the composition.
    Type: Application
    Filed: June 13, 2016
    Publication date: June 7, 2018
    Inventors: Abdelaziz Rahy, DeWitt Knox, Mohand Melbouci, Christopher Alameddin, Joel F. Siegel, Benjamin J. Poppel, Leendert Weijers, Ronald Gusek