Patents by Inventor Claude A. Sellars, Jr.

Claude A. Sellars, Jr. 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 conducting well operations from a moveable floating platform
    Patent number: 4972907
    Abstract: A method is described for conducting well operations from a floating platform that may be moved to various locations above subterranean formations. Marine risers that have been previously connected to the platform flex sufficiently to allow this movement. The mobility of the platform allows well drilling, completion, producing, and workover activities to be conducted simultaneously through the risers attached to the platform. The mobility of the platform also allows new wells to be drilled at more preferable locations than those that would be available from a fixed bottom supported well template.
    Type: Grant
    Filed: August 10, 1987
    Date of Patent: November 27, 1990
    Assignee: Shell Offshore Inc.
    Inventor: Claude A. Sellars, Jr.