Patents by Inventor Robert S. Buchan

Robert S. Buchan 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).

  • Method of running a tubing hanger and internal tree cap simultaneously
    Patent number: 7743832
    Abstract: During the completion of a subsea horizontal tree, a tubing hanger and internal tree cap are run together with the same running tool and running string. The running tool has a linking assembly that connects the tree cap to the tubing hanger during running, retrieval, or workover, so that the tree cap supports the weight of the tubing hanger and string of tubing. The linking assembly can be retrieved with the running tool or retrieved on wireline through the running string.
    Type: Grant
    Filed: March 23, 2007
    Date of Patent: June 29, 2010
    Assignee: Vetco Gray Inc.
    Inventors: Gary A. Shaw, Robert S. Buchan, Kevin G. Buckle
  • METHOD OF RUNNING A TUBING HANGER AND INTERNAL TREE CAP SIMULTANEOUSLY
    Publication number: 20090071656
    Abstract: An assembly for the completion of a subsea horizontal tree that includes a tubing hanger, an internal tree cap, and a running tool.
    Type: Application
    Filed: September 23, 2008
    Publication date: March 19, 2009
    Applicant: VETCO GRAY INC.
    Inventors: Gary A. Shaw, Robert S. Buchan, Kevin G. Buckle
  • Method of Running a Tubing Hanger and Internal Tree Cap Simultaneously
    Publication number: 20080230229
    Abstract: During the completion of a subsea horizontal tree, a tubing hanger and internal tree cap are run together with the same running tool and running string. The running tool has a linking assembly that connects the tree cap to the tubing hanger during running, retrieval, or workover, so that the tree cap supports the weight of the tubing hanger and string of tubing. The linking assembly can be retrieved with the running tool or retrieved on wireline through the running string.
    Type: Application
    Filed: March 23, 2007
    Publication date: September 25, 2008
    Inventors: Gary A. Shaw, Robert S. Buchan, Kevin G. Buckle