Patents by Inventor Geir Lundgard

Geir Lundgard 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).

  • High pressure swell seal
    Patent number: 9476281
    Abstract: A well tool for sealing an annular gap between a tubing string and a wellbore wall is described. In one implementation, the well tool includes an annular inner seal, an annular sleeve disposed over the inner seal, an annular outer seal residing over the sleeve and comprising a swellable elastomer adapted to swell when contacted by a specified fluid, the annular outer seal being axially shorter than the sleeve, and an end ring adapted to be disposed at an end of the sleeve, the sleeve configured to buckle against the end ring in response to a deformation of the outer seal due to directional pressure.
    Type: Grant
    Filed: June 20, 2013
    Date of Patent: October 25, 2016
    Assignee: HALLIBURTON ENERGY SERVICES, INC.
    Inventor: Geir Lundgard
  • High Pressure Swell Seal
    Publication number: 20160130907
    Abstract: A well tool for sealing an annular gap between a tubing string and a wellbore wall is described. In one implementation, the well tool includes an annular inner seal, an annular sleeve disposed over the inner seal, an annular outer seal residing over the sleeve and comprising a swellable elastomer adapted to swell when contacted by a specified fluid, the annular outer seal being axially shorter than the sleeve, and an end ring adapted to be disposed at an end of the sleeve, the sleeve configured to buckle against the end ring in response to a deformation of the outer seal due to directional pressure.
    Type: Application
    Filed: June 20, 2013
    Publication date: May 12, 2016
    Applicant: Halliburton Energy Services, Inc.
    Inventor: Geir Lundgard