Controlling the pressure within an annular volume of a wellbore

Details for Australian Patent Application No. 2011205212 (hide)

Owner Chevron U.S.A. Inc. The Regents of the University of California

Inventors Llewellyn, Biran C.; Coates, Don M.; Bloys, James B.; Gonzalez, Manuel E.; Hermes, Robert E.

Agent Freehills

Pub. Number AU-A-2011205212

Parent 2006318802

Filing date 8 August 2011

Wipo publication date 25 August 2011

International Classifications

E21B 33/13 (2006.01) Sealing or packing boreholes or wells - Methods or devices for cementing, for plugging holes, crevices, or the like

E21B 43/00 (2006.01) Obtaining fluids from wells

Event Publications

25 August 2011 Application Open to Public Inspection

  Published as AU-A-2011205212

25 August 2011 Complete Application Filed

20 October 2011 Assignment before Grant

  Chevron U.S.A. Inc.; The Regents of the University of California The application has been assigned to Chevron U.S.A. Inc.; Los Alamos National Laboratory LLC

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