Patents by Inventor Peter J. R. Davis

Peter J. R. Davis 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 head alignment system
    Patent number: 4721163
    Abstract: A tubing hanger alignment system for a subsea well, periodically subjected to treatment by removing the well tubing and inserting treating tools therein, wherein a tubing guidance system cooperating with the wellhead for engaging a downwardly moving tubing hanger running system thereby to rotate said tubing hanger sufficiently to position the carried tubing at a predetermined relationship with the wellhead, thereby providing access into the tubing hanger for sealing elements of an over-positioned subsea tree co-operative with the wellhead.
    Type: Grant
    Filed: February 27, 1986
    Date of Patent: January 26, 1988
    Assignee: Texaco Limited
    Inventor: Peter J. R. Davis