Flow switchable check valve

Details for Australian Patent Application No. 2005230557 (hide)

Owner Halliburton Energy Services, Inc.

Inventors Surjaatmadja, Jim B.

Agent Callinan

Pub. Number AU-B-2005230557

PCT Pub. Number WO2005/098197

Priority 10/819,593 07.04.04 US

Filing date 4 April 2005

Wipo publication date 20 October 2005

Acceptance publication date 19 November 2009

International Classifications

E21B 21/10 (2006.01) Methods or apparatus for flushing boreholes, e.g. by use of exhaust air from motor

E21B 23/00 (2006.01) Apparatus for displacing, setting, locking, releasing or removing tools, packers or the like in boreholes or wells

E21B 34/10 (2006.01) Valve arrangements for boreholes or wells

E21B 34/12 (2006.01) Valve arrangements for boreholes or wells

E21B 43/26 (2006.01) Obtaining fluids from wells

Event Publications

21 September 2006 PCT application entered the National Phase

  PCT publication WO2005/098197 Priority application(s): WO2005/098197

19 November 2009 Application Accepted

  Published as AU-B-2005230557

18 March 2010 Standard Patent Sealed

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