Patents by Inventor Sean K. Barr

Sean K. Barr 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 well communications apparatus and method using variable tension large offset risers
    Patent number: 7748464
    Abstract: The current subject matter relates to compliant variable tension risers to connect deep-water subsea wellheads to a single floating platform in wet tree or dry try systems. The variable tension risers allow several subsea wellheads, in water depths from 1220 to 3050 meters, at lateral offsets from one-tenth to twice the depth or more, to tie back to a single floating platform. Also, the current subject matter relates to methods to counter buoyancy and install variable tension risers using a weighted chain ballast line.
    Type: Grant
    Filed: May 12, 2008
    Date of Patent: July 6, 2010
    Assignee: Kellogg Brown & Root LLC
    Inventors: Shankar U. Bhat, John Christian Hartley Mungall, David Brian Andersen, Kevin Gerard Haverty, Sean K. Barr, Davinder Manku
  • Subsea Well Communications Apparatus and Method Using Variable Tension Large Offset Risers
    Publication number: 20080210433
    Abstract: The current subject matter relates to compliant variable tension risers to connect deep-water subsea wellheads to a single floating platform in wet tree or dry try systems. The variable tension risers allow several subsea wellheads, in water depths from 1220 to 3050 meters, at lateral offsets from one-tenth to twice the depth or more, to tie back to a single floating platform. Also, the current subject matter relates to methods to counter buoyancy and install variable tension risers using a weighted chain ballast line.
    Type: Application
    Filed: May 12, 2008
    Publication date: September 4, 2008
    Applicant: KELLOGG BROWN & ROOT, INC.
    Inventors: Shankar Uluvana Bhat, John Christian Hartley Mungall, David Brian Andersen, Kevin Gerard Haverty, Sean K. Barr, Davinder Manku
  • Subsea well communications apparatus and method using variable tension large offset risers
    Patent number: 7416025
    Abstract: Disclosed are compliant variable tension risers (106) to connect deep-water subsea wellheads (102) to a single floating platform (104) in wet tree or dry try systems. The variable tension risers (106) allow several subsea wellheads (102), in water depths from 1220 to 3050 meters, at lateral offsets from one-tenth to twice the depth or more, to tie back to a single floating platform (104). Also disclosed are methods to counter buoyancy and install variable tension risers using a weighted chain ballast line (228, 230).
    Type: Grant
    Filed: August 30, 2005
    Date of Patent: August 26, 2008
    Assignee: Kellogg Brown & Root LLC
    Inventors: Shankar Uluvana Bhat, John Christian Hartley Mungall, David Brian Andersen, Kevin Gerard Haverty, Sean K. Barr, Davinder Manku