Method for directional drilling of subterranean wells

Details Method for directional drilling of subterranean wells Method for directional drilling of subterranean wells

1988-12-16

1991-09-24

Kisliuk, Bruce M.

Boring or penetrating the earth

Processes

Boring curved or redirected bores

175 74, 175 76, 175256, E21B 708

Patent

active

050506927

ABSTRACT:
A method for directional drilling of a well with a motor and drill bit. A tubular housing is secured to the lower end of the motor with the housing having a first surface with an axis angularly disposed relative to the axis of the tubular housing. A second tubular housing has a surface engagable with the first surface and is angularly disposed relative to the axis of the second tubular housing with the extent of the engagement of the first and second surfaces determining the angular position of the axis of the second tubular housing relative to the axis of the first tubular housing. The extent of the engagment of the surfaces is selectively adjustable by shims. A first angular stabilizer is carried with a drill bit which is rotatably mounted with a drive means including universal joints. The apparatus is secured to a tubing string with a drill bit and lowered into the bore hole with the apparatus actuated by application of tubing weight with direction being controlled by rotation of the drill string.

REFERENCES:
patent: 3586116 (1971-06-01), Tiraspolsky
patent: 4465147 (1984-08-01), Feenstra et al.
patent: 4485879 (1984-12-01), Kamp et al.
patent: 4492276 (1985-01-01), Kamp
patent: 4560013 (1985-12-01), Beimgraben
patent: 4577701 (1986-03-01), Dellinger et al.
patent: 4667751 (1987-05-01), Geczy et al.
patent: 4694914 (1987-09-01), Obrecht
patent: 4739842 (1988-04-01), Kruger et al.

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