Patents by Inventor David Crenshaw Barrow

David Crenshaw Barrow 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).

  • Wellhead bracing system
    Patent number: 12221860
    Abstract: A wellhead bracing system for a subsea well includes a base plate assembly and a wellhead brace assembly. The base plate assembly comprises a top surface, a bottom surface, a base plate aperture, and a plurality of anchor holes. The wellhead brace assembly comprises a vertical plate assembly having a cylindrical shape, a horizontal plate assembly to which the vertical plate assembly is attached, and a vertical support assembly attached to an outer surface of the vertical plate assembly and attached to the top surface of the horizontal plate assembly. Horizontal plate holes of the horizontal plate assembly are configured to attach to studs on the top surface of the base plate to secure the wellhead brace assembly to the base plate assembly. The wellhead bracing system slides onto a wellhead of the subsea well and braces an exterior of the wellhead.
    Type: Grant
    Filed: September 23, 2023
    Date of Patent: February 11, 2025
    Assignee: CHEVRON U.S.A. INC.
    Inventors: Wangming Lu, Khiem Nguyen, Jay Patrick Painter, Caleb Kimbrell Carroll, William Stephen Averill, Deryck Edward Matthew Williams, David Crenshaw Barrow, Michael Ryan Fitzsimmons
  • DEVICE TO REDUCE SUBSEA BLOWOUT PREVENTER VIBRATIONS
    Publication number: 20240200631
    Abstract: The present embodiments disclose a device for dampening the lateral vibrations on a blowout preventer (BOP). The device is a cylinder with a support bar and a mass contained within. The mass can move along the support bar and press against springs, thus dampening the vibrations made against a BOP and wellhead.
    Type: Application
    Filed: December 15, 2022
    Publication date: June 20, 2024
    Inventors: Wangming Lu, David Crenshaw Barrow
  • Wellhead Bracing System
    Publication number: 20240110463
    Abstract: A wellhead bracing system for a subsea well includes a base plate assembly and a wellhead brace assembly. The base plate assembly comprises a top surface, a bottom surface, a base plate aperture, and a plurality of anchor holes. The wellhead brace assembly comprises a vertical plate assembly having a cylindrical shape, a horizontal plate assembly to which the vertical plate assembly is attached, and a vertical support assembly attached to an outer surface of the vertical plate assembly and attached to the top surface of the horizontal plate assembly. Horizontal plate holes of the horizontal plate assembly are configured to attach to studs on the top surface of the base plate to secure the wellhead brace assembly to the base plate assembly. The wellhead bracing system slides onto a wellhead of the subsea well and braces an exterior of the wellhead.
    Type: Application
    Filed: September 23, 2023
    Publication date: April 4, 2024
    Inventors: Wangming Lu, Khiem Nguyen, Jay Patrick Painter, Caleb Kimbrell Carroll, William Stephen Averill, Deryck Edward Matthew Williams, David Crenshaw Barrow, Michael Ryan Fitzsimmons