Temperature limited heaters for heating subsurface formations or wellbores

Details for Australian Patent Application No. 2003286673 (hide)

Owner Shell Internationale Research Maatschappij B.V.

Inventors Carl, Jr. Frederick Gordon; Sandberg, Chester Ledlie; Son, Jaime Santos; Vinegar, Harold J.; MenottiI, James Louis; Harris, Christopher Kelvin

Agent Davies Collison Cave

Pub. Number AU-B-2003286673

PCT Number PCT/US2003/0338

PCT Pub. Number WO2004/038173

Priority 60/420,835 24.10.02 US; 60/465,279 24.04.03 US

Filing date 24 October 2003

Wipo publication date 13 May 2004

Acceptance publication date 27 September 2007

International Classifications

E21B 36/04 (2006.01) Heating, cooling, or insulating arrangements for boreholes or wells, e.g. for use in permafrost zones

E21B 36/02 (2006.01) Heating, cooling, or insulating arrangements for boreholes or wells, e.g. for use in permafrost zones

E21B 43/24 (2006.01) Obtaining fluids from wells

Event Publications

1 April 2004 Complete Application Filed

  Priority application(s): 60/420,835 24.10.02 US; 60/465,279 24.04.03 US

17 June 2004 Application Open to Public Inspection

  Published as AU-B-2003286673

27 September 2007 Application Accepted

  Published as AU-B-2003286673

24 January 2008 Standard Patent Sealed

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