Fail safe regulator for deep-set safety valve having dual control lines

Details for Australian Patent Application No. 2011224003 (hide)

Owner Weatherford/Lamb, Inc.

Inventors Smith, Roddie R.; Clapp, Donnie R.

Agent Fisher Adams Kelly

Pub. Number AU-A-2011224003

Priority 12/890,056 24.09.10 US

Filing date 13 September 2011

Wipo publication date 12 April 2012

International Classifications

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

E21B 34/08 (2006.01) Valve arrangements for boreholes or wells

E21B 34/16 (2006.01) Valve arrangements for boreholes or wells

Event Publications

29 September 2011 Complete Application Filed

  Priority application(s): 12/890,056 24.09.10 US

12 April 2012 Application Open to Public Inspection

  Published as AU-A-2011224003

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