Patents by Inventor Pete J. Clark

Pete J. Clark 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: 10301908
    Abstract: An array of sliding sleeve valves are uniquely addressable without control lines or wires to open for a treatment and then close and then selectively open for production. The discrete movements employ an available pressure source such as tubing pressure and change the piston areas on opposed sides of a sliding sleeve valve to get the desired movements. Access valves to tubing pressure can be actuated in a desired sequence with signals such as acoustic or electromagnetic, for example. Access to one piston area that communicates opposed and offsetting piston areas to the tubing hydrostatic can be achieved with a straddle tool breaking a rupture disc. The piston is then in pressure balanced and can be moved in a desired direction with the straddle tool straddling access locations to the piston from above or below.
    Type: Grant
    Filed: February 9, 2017
    Date of Patent: May 28, 2019
    Assignees: BAKER HUGHES, A GE COMPANY, LLC, CHEVRON USA, INC.
    Inventors: John K. Wakefield, Alexander Kendall, Stephen A. Graham, Pete J. Clark