Bit guidance device and method

Details Bit guidance device and method Bit guidance device and method

1982-01-21

1983-11-22

Purser, Ernest R.

Boring or penetrating the earth

Processes

Boring curved or redirected bores

175 73, 175 76, 175 77, E21B 704

Patent

active

044163398

ABSTRACT:
The invention disclosed herein provides a mechanism and method for positive drill bit guidance during well drilling operations. The guidance device includes a control arm or paddle which, due to hydraulic pressure, pivots to steer the drill bit towards its target area. As the paddle applies pressure to the wall of the well, the drill bit is then turned from the contacted area of the well wall in the desired direction.

REFERENCES:
patent: 3023821 (1962-03-01), Etherington
patent: 3092188 (1963-06-01), Farris et al.
patent: 3243001 (1966-03-01), Vincent
patent: 3554302 (1971-01-01), Adkins et al.
Whipco Rebel Tool Brochure, 4 pages.
World Oil Straight Hole Drilling article; copyright 1963, A-1 Bowen Whipstocks Instruction Manual.
Scientific Drilling Controls Brochure.

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