Directional drilling tool apparatus and method

Details Directional drilling tool apparatus and method Directional drilling tool apparatus and method

1990-11-13

1992-10-20

Neuder, William P.

Boring or penetrating the earth

Automatic control

Of boring means including a below-ground drive prime mover

175 45, 175 61, E21B 414, E21B 706

Patent

active

051562227

ABSTRACT:
The present invention discloses a drilling tool apparatus and method for sinking drill holes in underground rock formations while using a selectable direction profile for the drill hole.

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