Apparatus for and a method of drilling offset wells for producin

Details Apparatus for and a method of drilling offset wells for producin Apparatus for and a method of drilling offset wells for producin

1988-04-07

1989-08-01

Kisliuk, Bruce M.

Boring or penetrating the earth

Processes

Boring curved or redirected bores

175 62, 175 73, 175 80, 175 82, 1661175, E21B 708, E21B 706

Patent

active

048526665

ABSTRACT:
A directional guidance device, for deflecting a drill bit away from the longitudinal axis of a substantially horizontal section of a wellbore, takes advantage of gravitational force to move a deflector member therein between first and second positions. In the first position, the deflector member prevents the drill bit from advancing past the directional guidance device. In the second position, the deflector member allows the bit to pass out of the guidance device, and deflects the bit away from the longitudinal axis of the horizontal section of the wellbore.

REFERENCES:
patent: 2173531 (1939-09-01), De Long
patent: 2404341 (1946-07-01), Zublin
patent: 4194580 (1980-03-01), Messenger
patent: 4386665 (1983-06-01), Dellinger
patent: 4431069 (1984-02-01), Dickinson, III et al.
patent: 4511000 (1985-04-01), Mims
patent: 4519463 (1985-05-01), Schuh
patent: 4601353 (1986-07-01), Schuh et al.

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