Well completion tool and process

Details Well completion tool and process Well completion tool and process

1994-03-22

1995-06-20

Britts, Ramon S.

Wells

Processes

Graveling or filter forming

166 51, 166123, 166318, F21B 4304

Patent

active

054254230

ABSTRACT:
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.

REFERENCES:
patent: 4253522 (1981-03-01), Setterberg, Jr.
patent: 4365671 (1981-12-01), Long
patent: 4410158 (1983-08-01), Spencer et al.
patent: 4606408 (1986-08-01), Zunkel et al.
patent: 4726419 (1988-02-01), Zunkel
patent: 5253708 (1993-10-01), Alexander
patent: 5255741 (1993-10-01), Alexander
patent: 5332038 (1994-07-01), Tapp et al.
patent: 5343949 (1994-09-01), Ross et al.

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