In situ heat treatment from multiple layers of a tar sands formation

Details for Australian Patent Application No. 2008242807 (hide)

Owner Shell Internationale Research Maatschappij B.V.

Inventors Vinegar, Harold J.

Agent Spruson & Ferguson

Pub. Number AU-B-2008242807

PCT Pub. Number WO2008/131179

Priority 60/925,685 20.04.07 US; 60/999,839 19.10.07 US

Filing date 18 April 2008

Wipo publication date 30 October 2008

Acceptance publication date 23 June 2011

International Classifications

E21B 36/00 (2006.01) Heating, cooling, or insulating arrangements for boreholes or wells, e.g. for use in permafrost zones

Event Publications

5 November 2009 PCT application entered the National Phase

  PCT publication WO2008/131179 Priority application(s): WO2008/131179

23 June 2011 Application Accepted

  Published as AU-B-2008242807

10 November 2011 Standard Patent Sealed

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