Method for reducing drilling torque in the drilling of a deviate

Details Method for reducing drilling torque in the drilling of a deviate Method for reducing drilling torque in the drilling of a deviate

1984-11-06

1987-02-17

Novosad, Stephen J.

Boring or penetrating the earth

Processes

Boring curved or redirected bores

175 65, 175 73, F21B 704

Patent

active

046432647

ABSTRACT:
A rotary well drilling system employs a drill pipe with a drill bit affixed at its lower end for the drilling of a deviated wellbore. Drilling fluid is circulated through the drill pipe to remove drill cuttings. The drill bit is rotated in the opposite direction from that of the drill pipe to reduce the torque required to rotate the drill pipe as it is rotationally dragged along the lower side of the wellbore walls during the drilling of the deviated wellbore.

REFERENCES:
patent: 3260318 (1966-07-01), Neilson et al.
patent: 3637032 (1972-01-01), Jeter
patent: 3841420 (1974-10-01), Russell
patent: 4492276 (1985-01-01), Kamp

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