Curvature probe and method

Details Curvature probe and method Curvature probe and method

E - Fixed Constructions

21

B

33/92

E21B 7/06 (2006.01) E21B 7/18 (2006.01) E21B 17/07 (2006.01) E21B 21/12 (2006.01) E21B 29/02 (2006.01) E21B 43/11 (2006.01) E21B 44/00 (2006.01) E21B 47/022 (2006.01)

Patent

CA 1264934

ABSTRACT Probe and method for determining the curvature of an elongated opening such as a borehole in the earth. The probe includes an axially extending flexible shaft and two pairs of sensing wires arranged in quadrature about the shaft for axial movement relative to each other upon bending of the probe. The relative axial positions of the sensing wires on opposite sides of the flexible shaft are monitored to determine the curvature of the borehole.

525693

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