Well completion tool and process

Details Well completion tool and process Well completion tool and process

E - Fixed Constructions

21

B

E21B 33/10 (2006.01) E21B 10/34 (2006.01) E21B 23/04 (2006.01) E21B 33/14 (2006.01) E21B 34/14 (2006.01) E21B 43/04 (2006.01) E21B 43/08 (2006.01)

Patent

CA 2151906

An oil well tool including a release mechanism, a splined torque transmitting driver, a liner, an under reamer and a drill bit. Circulation in a passageway through the tool provides drilling foam or fluid to the drill bit and under reamer. A restriction below the under reamer provides pressure to hydraulically force cone arms of the under reamer outwardly. A valve mechanism located within a stinger subassembly within the liner controls communication between the central passageway and the perforated liner. The valve is actuated by placement of a ball following drilling. Gravel packing through the well annulus may then occur following drilling. A second valve may later by actuated to separate the drill pipe from the liner and associated components.

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