Patents by Inventor Paul Antony Rennison

Paul Antony Rennison 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).

  • Tubular hanger and method of lining a drilled bore
    Patent number: 7475735
    Abstract: A method of lining a drilled bore comprises running an expandable first tubular into a bore and locating a portion of the first tubular in an unlined section of the bore and another portion of the first tubular overlapping a portion of an existing second tubular. The first tubular is secured relative to the second tubular while retaining the provision of fluid outlets to permit displacement of fluid from an annulus between the first tubular and the bore wall. An expansion device is then run through the first tubular to expand the first tubular to a larger diameter. Cement is then circulated into the annulus between the expanded first tubular and the bore wall. The fluid outlets are then closed.
    Type: Grant
    Filed: December 22, 2006
    Date of Patent: January 13, 2009
    Assignee: Weatherford/Lamb, Inc.
    Inventors: Simon John Harrall, Paul David Metcalfe, Paul Antony Rennison
  • Tubular hanger and method of lining a drilled bore
    Patent number: 7152684
    Abstract: A method of lining a drilled bore comprises running an expandable first tubular into a bore and locating a portion of the first tubular in an unlined section of the bore and another portion of the first tubular overlapping a portion of an existing second tubular. The first tubular is secured relative to the second tubular while retaining the provision of fluid outlets to permit displacement of fluid from an annulus between the first tubular and the bore wall. An expansion device is then run through the first tubular to expand the first tubular to a larger diameter. Cement is then circulated into the annulus between the expanded first tubular and the bore wall. The fluid outlets are then closed.
    Type: Grant
    Filed: December 20, 2002
    Date of Patent: December 26, 2006
    Assignee: Weatherford/Lamb, Inc.
    Inventors: Simon John Harrall, Paul David Metcalfe, Paul Antony Rennison
  • Bore liner
    Publication number: 20030127225
    Abstract: A method of lining a drilled bore comprises running an expandable first tubular into a bore and locating part portion of the first tubular in an unlined section of the bore and another portion of the first tubular overlapping a portion of an existing second tubular. The first tubular is secured relative to the second tubular while retaining the provision of fluid outlets to permit displacement of fluid from an annulus between the first tubular and the bore wall. An expansion device is then run through the first tubular to expand the first tubular to a larger diameter. Cement is then circulated into the annulus between the expanded first tubular and the bore wall. The fluid outlets are then closed.
    Type: Application
    Filed: December 20, 2002
    Publication date: July 10, 2003
    Inventors: Simon John Harrall, Paul David Metcalfe, Paul Antony Rennison