Patents by Inventor John C. Pursell

John C. Pursell 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).

  • Splice system for use in splicing coiled tubing having internal power cable
    Patent number: 6545221
    Abstract: A system for splicing coiled tubing used in deploying downhole equipment and having an internal power cable. The system includes first and second segments of coiled tubing each having power cable disposed therein. Additionally, mounting fixtures are attached to the ends of the coiled tubing segments that are to be joined. The system further includes a movable canister that may be slid over the spliced segments of power cable and selectively engaged with the mounting fixtures. The canister provides structural integrity to the overall deployment tubing while protecting the internal power cable splice.
    Type: Grant
    Filed: November 23, 1999
    Date of Patent: April 8, 2003
    Assignee: Camco International, Inc.
    Inventors: Pinke Halpert, Lee S. Kobylinski, Marcus D. McHugh, Howard A. Oswald, John C. Pursell
  • Well completion method and apparatus with cable inside a tubing and gas venting through the tubing
    Patent number: 6533039
    Abstract: A packer is disposed within a wellbore casing. The packer defines a first and a second zone of the wellbore. A submersible pumping system is used to displace liquid from the first zone of the wellbore via a first fluid flow path. A cable is used for supplying power to the submersible pumping system. The cable extends through tubing that extends from a surface location. A second fluid flow path extends from the first zone of the wellbore to a surface location. A portion of the second fluid flow path extends through the tubing.
    Type: Grant
    Filed: February 15, 2001
    Date of Patent: March 18, 2003
    Assignee: Schlumberger Technology Corp.
    Inventors: Olegario S. Rivas, John C. Pursell
  • Well completion with cable inside a tubing and gas venting through the tubing
    Publication number: 20020121376
    Abstract: A packer is disposed within a wellbore casing. The packer defines a first and a second zone of the wellbore. A submersible pumping system is used to displace liquid from the first zone of the wellbore via a first fluid flow path. A cable is used for supplying power to the submersible pumping system. The cable extends through the tubing that extends from the location. A second fluid flow path extends from the first zone of the wellbore to a surface location. A portion of the second fluid flow path extends through the tubing.
    Type: Application
    Filed: February 15, 2001
    Publication date: September 5, 2002
    Inventors: Olegario S. Rivas, John C. Pursell
  • Deployment tubing connector having internal electrical penetrator
    Patent number: 6332499
    Abstract: A connector for use in a deployment system able to deploy and power a device, such as an electric submergible pumping system, in a well. The connector includes pluggable ends that permit connection adjacent segments, each having an outer section of tubing and an internal power cable. Each connector includes a tubing connector portion and a power cable connector portion that permit pluggable connection of sequential tubing segments when deploying a device or system downhole.
    Type: Grant
    Filed: November 23, 1999
    Date of Patent: December 25, 2001
    Assignee: Camco International, Inc.
    Inventors: Lee S. Kobylinski, John C. Pursell, Howard A. Oswald, Marcus D. McHugh, Pinke Halpert