Method and apparatus for drilling optimum subterranean well bore

Details Method and apparatus for drilling optimum subterranean well bore Method and apparatus for drilling optimum subterranean well bore

1993-11-10

1995-02-21

Buiz, Michael Powell

Boring or penetrating the earth

Automatic control

175 40, E21B 4400

Patent

active

053907485

ABSTRACT:
A method and apparatus are provided for drilling a borehole through formations of the earth to a targeted position relative to the entrance of the borehole on the surface of the earth. At each measurement of the position and orientation of the downhole drilling mechanism, the system controller determines a new optimum path to the target and commands the drilling apparatus to produce this optimum path. Different criteria may determine the optimum path. The preferred criterion is the path of minimum tortuosity.

REFERENCES:
patent: 4407017 (1983-09-01), Zhilikov et al.
patent: 4606415 (1986-08-01), Gray, Jr. et al.
patent: 5318136 (1994-06-01), Rowsell et al.

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