Directional multi-blade boring head

Details Directional multi-blade boring head Directional multi-blade boring head

1993-12-09

1995-02-28

Buiz, Michael Powell

Boring or penetrating the earth

Processes

Boring horizontal bores

175376, E21B 700

Patent

active

053928687

ABSTRACT:
Directional boring bits (1100, 1200) are disclosed which have at least one roller cone (1202, 1104) and also each define a deflecting surface (1104) for deflecting the boring bit when the bit is advanced without rotation. The borehole can be curved by pushing the bit forward without rotation.

REFERENCES:
patent: 4953638 (1990-09-01), Dunn
patent: 5289987 (1994-03-01), Puttmann

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