Subsurface heating using heaters coupled in a three-phase wye configuration

Details for Australian Patent Application No. 2006240033 (hide)

Owner Shell Internationale Research Maatschappij B.V.

Inventors Vinegar, Harold J.; Sandberg, Chester Ledlie

Agent Davies Collison Cave

Pub. Number AU-B-2006240033

PCT Pub. Number WO2006/116078

Priority 60/674,081 22.04.05 US

Filing date 21 April 2006

Wipo publication date 2 November 2006

Acceptance publication date 12 August 2010

International Classifications

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

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

Event Publications

1 November 2007 PCT application entered the National Phase

  PCT publication WO2006/116078 Priority application(s): WO2006/116078

12 August 2010 Application Accepted

  Published as AU-B-2006240033

9 December 2010 Standard Patent Sealed

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