Patents by Inventor William Lewis Greiner

William Lewis Greiner 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
  • 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