E - Fixed Constructions – 21 – B
Patent
E - Fixed Constructions
21
B
166/9
E21B 23/06 (2006.01) E21B 23/04 (2006.01) E21B 33/129 (2006.01) E21B 43/04 (2006.01) E21B 43/10 (2006.01)
Patent
CA 1246990
Abstract Of The Disclosure A system is provided for gravel-packing a zone of a well. The system includes a liner hanger setting apparatus for setting a liner hanger located below the apparatus within the well. The liner hanger setting apparatus includes a housing having a housing bore disposed therethrough. A ball valve is disposed in the housing and has a ball valve bore disposed therethrough. The ball valve is rotatable between an initial closed position and an open position wherein the ball valve bore is aligned with the housing bore. A differential pressure responsive liner setting assembly is operably associated with the housing for setting the liner hanger in response to an increase in fluid pressure within an upper portion of the housing bore above the initially closed ball valve. A differential pressure responsive valve actuating assembly is operably associated with the ball valve for moving the ball valve from its initial closed position to its open posi- tion in response to an increase in fluid pressure within a well annulus external of the apparatus. After the ball valve has been opened, a concentric inner tubing string can be received through the ball valve bore thereof for insertion into a gravel-packing apparatus located therebelow.
502348
Stepp Lee W.
Zunkel Gary D.
Company Halliburton
Ogilvy Renault Llp/s.e.n.c.r.l.,s.r.l.
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