Patents by Inventor John Skaggs

John Skaggs 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).

  • Subsea control system with interchangeable mandrel
    Patent number: 8839868
    Abstract: A technique enables protection of subsea wells. The technique employs a subsea test tree designed to ensure control over the well in a variety of situations. The subsea test tree is formed with at least one shut-off valve to protect against unwanted release of fluids from the subsea test tree. The subsea test tree also is coupled with and controlled by a control system having a subsea control module mounted to an interior mandrel.
    Type: Grant
    Filed: September 9, 2010
    Date of Patent: September 23, 2014
    Assignee: Schlumberger Technology Corporation
    Inventors: Joseph D. Scranton, Tauna Leonardi, John Skaggs, John Yarnold, John Kerr
  • SUBSEA CONTROL SYSTEM WITH INTERCHANGEABLE MANDREL
    Publication number: 20110120722
    Abstract: A technique enables protection of subsea wells. The technique employs a subsea test tree designed to ensure control over the well in a variety of situations. The subsea test tree is formed with at least one shut-off valve to protect against unwanted release of fluids from the subsea test tree. The subsea test tree also is coupled with and controlled by a control system having a subsea control module mounted to an interior mandrel.
    Type: Application
    Filed: September 9, 2010
    Publication date: May 26, 2011
    Applicant: SCHLUMBERGER TECHNOLOGY CORPORATION
    Inventors: Joseph D. Scranton, Tauna Leonardi, John Skaggs, John Yarnold, John Kerr
  • SUBSEA CONTROL SYSTEM
    Publication number: 20110005770
    Abstract: A technique enables protection of subsea wells. The technique employs a subsea test tree and associated control system to ensure control over the well in a variety of situations. The subsea test tree may be formed with an upper portion releasably coupled to a lower portion. The upper portion employs at least one upper shut-off valve, and the lower portion employs at least one lower shut-off valve to protect against unwanted release of fluids from either above or below the subsea test tree. The subsea test tree also is coupled with the control system in a manner which allows control to be exercised over the at least one upper shut-often valve and the at least one lower shut-off valve.
    Type: Application
    Filed: May 3, 2010
    Publication date: January 13, 2011
    Applicant: SCHLUMBERGER TECHNOLOGY CORPORATION
    Inventors: Joseph D. Scranton, John Yarnold, Tauna Leonardi, John Skaggs