Accelerometer caliper while drilling

Details Accelerometer caliper while drilling Accelerometer caliper while drilling

E - Fixed Constructions

21

B

E21B 44/00 (2006.01) E21B 47/01 (2006.01) E21B 7/04 (2006.01)

Patent

CA 2382974

An accelerometer caliper while drilling arrangement comprising a drill bit having an axis 12 of rotation and a gauge region 14, a caliper tool body 20, a first accelerometer 24 mounted upon the caliper tool body 20 and arranged to measure acceleration in a first direction 25, and a second accelerometer 28 mounted upon the caliper tool body 20 and arranged to measure acceleration in a second direction 29 orthogonal to the first direction 25, wherein the caliper tool body 20 and the drill bit 10 are coupled to one another in such a manner that the first and second accelerometers 24, 28 are mounted in a known relationship to the drill bit 10.

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