Method for steering a ground-drilling machine

Details Method for steering a ground-drilling machine Method for steering a ground-drilling machine

1997-02-12

2000-01-11

Schoeppel, Roger

Boring or penetrating the earth

Boring without earth removal

Fluid passage to exterior of drive point

175 45, 175 61, 175103, E21B 726

Patent

active

060125365

ABSTRACT:
The invention pertains to a method for steering a ground drilling machine, in particular, a pipe string assembly with a drilling head which is driven in the ground in rotative, propulsive and, if so desired, percussive fashion, in which at least one deflection pulse is exerted upon the rotating drilling head or the pulses acting upon the drilling head are interrupted when the angular position of the drilling head relative its axis corresponds to the position in which the deflection should take place.

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