Method and apparatus for measurement of azimuth of a borehole wh

Details Method and apparatus for measurement of azimuth of a borehole wh Method and apparatus for measurement of azimuth of a borehole wh

1987-05-27

1990-01-23

Haroian, Harry N.

Geometrical instruments

Indicator of direction of force traversing natural media

Borehole direction or inclination

E21B 4702

Patent

active

048949230

ABSTRACT:
A method and apparatus is presented for measuring the azimuth angle of a borehole being drilled, the data for determining the azimuth angle being obtained while the drillstring is rotating.

REFERENCES:
patent: 3862499 (1975-01-01), Isham et al.
patent: 4472884 (1984-09-01), Engebretson
patent: 4510696 (1985-04-01), Roesler
patent: 4682421 (1987-07-01), Dongen
patent: 4761889 (1988-08-01), Cobern

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