Azimuth determination for vector sensor tools

Details Azimuth determination for vector sensor tools Azimuth determination for vector sensor tools

E - Fixed Constructions

21

B

33/92

E21B 47/02 (2006.01) E21B 47/022 (2006.01)

Patent

CA 1195107

AZIMUTH DETERMINATION FOR VECTOR SENSOR TOOLS ABSTRACT OF THE DISCLOSURE This invention relates to mapping or survey apparatus and methods, and more particularly concerns derivation of the azimuth output indications for such apparatus in a borehole from the outputs or output indications of either an inertial angular rate vector sensor (or sensors) and an acceleration vector sensor (or sensors), or a magnetic field vector sensor (or sensors), and from the outputs of an acceleration vector sensor (or sensors). Borehole tilt is also derived. -1-

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