Self-contained downhole compass

Details Self-contained downhole compass Self-contained downhole compass

1980-10-31

1983-05-03

Martin, Jr., William D.

Geometrical instruments

Indicator of direction of force traversing natural media

Borehole direction or inclination

33363K, E21B 47022

Patent

active

043816100

ABSTRACT:
A self-contained compass apparatus includes a sensing circuit and power source which are enclosed along with a compass unit within a chamber which is adaptable for suspension at extended distances into a borehole, such as, an oil well, so as to assist in determining direction and orientation of articles, such as tooling, positioned in the well.

REFERENCES:
patent: 2116350 (1938-05-01), Hewitt
patent: 2190950 (1940-02-01), Potapenko
patent: 2232777 (1943-10-01), Boucher
patent: 2236543 (1941-04-01), McFaddan
patent: 2268256 (1941-12-01), Knouse
patent: 2492794 (1949-12-01), Goble et al.
patent: 2609513 (1952-09-01), Boucher et al.
patent: 2996807 (1961-08-01), Fletcher et al.
patent: 3253341 (1966-05-01), Bergan
patent: 3789510 (1974-02-01), Richter et al.

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