Patents by Inventor Toby S. Pugh

Toby S. Pugh 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: 10883349
    Abstract: A wellbore completion is configured for multiple forms of artificial lift. A downhole assembly on production tubing defines a production port communicating a throughbore with the wellbore annulus. A bypass, such as a snorkel or riser tube, on the assembly also communicates the throughbore between the packer and the production port with the annulus. A packer on the assembly seals in the annulus downhole of the production port and bypass. The assembly can then be configured for any selected artificial lift. To do this, at least one isolation (a sleeve insert, a sliding sleeve, a check valve, or a rupture disk) selectively prevents/allows communication via one or both of the production port and the bypass as needed. Additionally, removable lift equipment, including jet pump, gas lift valve, plunger assembly, rod pump, piston pump, or standing valve, is selectively inserted into the assembly's throughbore as needed.
    Type: Grant
    Filed: September 22, 2017
    Date of Patent: January 5, 2021
    Assignee: WEATHERFORD TECHNOLOGY HOLDINGS, LLC
    Inventors: Thomas Scott Campbell, Manish Agarwal, Jeffrey J. Lembcke, Michael C. Knoeller, Toby S. Pugh, William C. Lane
  • Publication number: 20190093461
    Abstract: A wellbore completion is configured for multiple forms of artificial lift. A downhole assembly on production tubing defines a production port communicating a throughbore with the wellbore annulus. A bypass, such as a snorkel or riser tube, on the assembly also communicates the throughbore between the packer and the production port with the annulus. A packer on the assembly seals in the annulus downhole of the production port and bypass. The assembly can then be configured for any selected artificial lift. To do this, at least one isolation, such as a sleeve insert, a sliding sleeve, a check valve, or a rupture disk, selectively prevents/allows communication via one or both of the production port and the bypass as needed. Additionally, removable lift equipment, including jet pump, gas lift valve, plunger assembly, rod pump, piston pump, or standing valve, is selectively inserted into the assembly's throughbore as needed.
    Type: Application
    Filed: September 22, 2017
    Publication date: March 28, 2019
    Inventors: Thomas Scott Campbell, Manish Agarwal, Jeffrey J. Lembcke, Michael C. Knoeller, Toby S. Pugh, William C. Lane