Borehole azimuth determination using magnetic field sensor

Details Borehole azimuth determination using magnetic field sensor Borehole azimuth determination using magnetic field sensor

G - Physics

01

V

324/9

G01V 3/26 (2006.01) G01V 7/16 (2006.01)

Patent

CA 1194111

ABSTRACT OF THE DISCLOSURE A well mapping apparatus comprises: a) a magnetic field sensing device whose output is proportional to a local magnetic field vector, b) an acceleration sensing device whose output is proportional to a local gravity vector, c) the devices supported for rotation about a common axis, in a borehole, d) the outputs being usable in the determination of azimuth and inclination of the borehole. -1-

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