Patents by Inventor Shankar Uluvana Bhat

Shankar Uluvana Bhat 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).

  • Dry tree subsea well communications apparatus using variable tension large offset risers
    Patent number: 7628206
    Abstract: Disclosed are compliant variable tension risers (106) to connect deep-water subsea wellheads (102) to a single floating platform (104). The variable tension risers (106) allow several subsea wellheads (102), in water depths from 4,000 to 10,000 feet, at lateral offsets from one-tenth to one-half of the depth, to tie back to a single floating dry tree semi-submersible platform (104).
    Type: Grant
    Filed: December 29, 2006
    Date of Patent: December 8, 2009
    Assignee: Kellogg Brown & Root LLC
    Inventors: Shankar Uluvana Bhat, John Christian Hartley Mungall, Kevin Gerard Haverty, David Brian Andersen, William Lewis Greiner
  • Dry tree subsea well communications methods using variable tension large offset risers
    Patent number: 7520331
    Abstract: Disclosed are methods to counter buoyancy and install variable tension risers using a weighted chain ballast line. An example of an apparatus used in conjunction with the embodiments includes compliant variable tension risers to connect deep-water subsea wellheads to a single floating platform. The variable tension risers allow several subsea wellheads, in water depths from 4,000 to 10,000 feet, at lateral offsets from one-tenth to one-half of the depth, to tie back to a single floating dry tree semi-submersible platform.
    Type: Grant
    Filed: January 8, 2007
    Date of Patent: April 21, 2009
    Assignee: Kellogg Brown & Root LLC
    Inventors: Shankar Uluvana Bhat, John Christian Hartley Mungall, Kevin Gerard Haverty, David Brian Andersen, William Lewis Greiner
  • 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
  • Dry tree subsea well communications apparatus and method using variable tension large offset risers
    Patent number: 7191836
    Abstract: Disclosed are compliant variable tension risers (106) to connect deep-water subsea wellheads (102) to a single floating platform (104). The variable tension risers (106) allow several subsea well-heads (102), in water depths from 4,000 to 10,000 feet, at lateral offsets from one-tenth to one-half of the depth, to tie back to a single floating dry tree semi-submersible 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 2, 2004
    Date of Patent: March 20, 2007
    Assignee: Kellogg Brown & Root LLC
    Inventors: Shankar Uluvana Bhat, John Christian Hartley Mungall, Kevin Gerard Haverty, David Brian Andersen, William Lewis Greiner