Method for computation of differential azimuth from...

Details Method for computation of differential azimuth from... Method for computation of differential azimuth from...

2006-04-18

2006-04-18

Barlow, John (Department: 2863)

Geometrical instruments

Indicator of direction of force traversing natural media

Borehole direction or inclination

C702S006000

Reexamination Certificate

active

07028409

ABSTRACT:
A method is provided for computing the differential azimuth between two sets of spaced-apart gravity component measurement devices in a borehole, employing multiple rotation angles. The method includes modeling relationships of axes as defined; forming equations relating rotation angles to outputs of gravity measuring devices; solving such equations to derive the values representative of all of the rotation angles, using measured values of the outputs from the first and second sets of gravity component measuring devices, and computing from the values of the rotation angles the differential azimuth angle between the first set and the second set of gravity measuring devices.

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