Patents by Inventor Jone Sigmundsen

Jone Sigmundsen 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).

  • Wellbore annular safety valve and method
    Patent number: 10174582
    Abstract: A well system includes an annular barrier separating the tubing-casing annulus into an upper annulus and a lower annulus and a barrier valve coupled with the annular barrier, the barrier valve permitting one-way fluid communication from the upper annulus to the lower annulus.
    Type: Grant
    Filed: January 10, 2014
    Date of Patent: January 8, 2019
    Assignee: SCHLUMBERGER TECHNOLOGY CORPORATION
    Inventors: Eirik Windegaard, Bjoern Staale Varnes, Niek Dijkstra, Geir Meling, Graham Watson, Emmanuel Balster, Magnus Paulsen, Jone Sigmundsen
  • WELLBORE ANNULAR SAFETY VALVE AND METHOD
    Publication number: 20150354315
    Abstract: A well system includes an annular barrier separating the tubing-casing annulus into an upper annulus and a lower annulus and a barrier valve coupled with the annular barrier, the barrier valve permitting one-way fluid communication from the upper annulus to the lower annulus.
    Type: Application
    Filed: January 10, 2014
    Publication date: December 10, 2015
    Applicant: Schlumberger Technology Corporation
    Inventors: Eirik Windegaard, Bjoern Staale Varnes, Niek Dijkstra, Geir Meling, Graham Watson, Emmanuel Balster, Magnus Paulsen, Jone Sigmundsen