Process and device for guiding a drilling tool through geologica

Details Process and device for guiding a drilling tool through geologica Process and device for guiding a drilling tool through geologica

1987-05-27

1990-03-06

Dang, Hoang C.

Boring or penetrating the earth

Automatic control

Of boring means including a below-ground drive prime mover

175 45, 175 50, 175 61, 175 73, E21B 704, E21B 47026

Patent

active

049057740

ABSTRACT:
A process and device making possible the guidance of the drilling tool through geological formations including an analytical device for directional geological analysis that carries out measurements as the drilling advances for guiding the drilling tool through the geological formation. The drilling column at its lower end includes the drilling tool (1) driven by a turbine (2) mounted on an elbow (4), a directional analytical device (3) that carries out measurements according to well set directions, a logging sensor (5), a drilling sensor (6) and a topographic probe (7). When drilling through specific geological formations, the information provided by the directional analytical device (3) is used for guiding the drilling tool in real time.

REFERENCES:
patent: 2917704 (1959-12-01), Arps
patent: 3353612 (1967-11-01), Bannister
patent: 4077657 (1978-03-01), Trzeciak
patent: 4164871 (1979-08-01), Cole et al.
patent: 4303135 (1981-12-01), Benot
patent: 4452075 (1984-06-01), Bockhorst et al.
patent: 4601353 (1986-07-01), Schuh et al.
patent: 4637479 (1987-01-01), Leising
patent: 4637480 (1987-01-01), Obrecht et al.
patent: 4697650 (1987-11-01), Fontenot

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