Patents by Inventor Michael Richard Dedman

Michael Richard Dedman 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).

  • Degradable in-line buoyant system for running casing in a wellbore
    Patent number: 11639641
    Abstract: A tool for running a casing string assembly into a wellbore includes a degradable plug assembly that temporarily isolates light fluid trapped in a lower portion of the casing string from heavier fluid in the upper portion of the casing string, thereby reducing the horizontal weight of the casing string by an amount sufficient to overcome a drag force. After the casing string is landed at a final location in the wellbore, fluid is introduced to the degradable plug assembly to degrade the plug and clear the axial passageway of the casing string so that tools or other equipment can pass therethrough.
    Type: Grant
    Filed: December 16, 2020
    Date of Patent: May 2, 2023
    Assignee: KLX ENERGY SERVICES, LLC
    Inventors: Robert Christopher Stratton, Michael Richard Dedman, Thomas Erle Larson
  • DEGRADABLE IN-LINE BUOYANT SYSTEM FOR RUNNING CASING IN A WELLBORE
    Publication number: 20210238942
    Abstract: A tool for running a casing string assembly into a wellbore includes a degradable plug assembly that temporarily isolates light fluid trapped in a lower portion of the casing string from heavier fluid in the upper portion of the casing string, thereby reducing the horizontal weight of the casing string by an amount sufficient to overcome a drag force. After the casing string is landed at a final location in the wellbore, fluid is introduced to the degradable plug assembly to degrade the plug and clear the axial passageway of the casing string so that tools or other equipment can pass therethrough.
    Type: Application
    Filed: December 16, 2020
    Publication date: August 5, 2021
    Applicant: KLX Energy Services LLC
    Inventors: Robert Christopher Stratton, Michael Richard Dedman, Thomas Erle Larson