Downhole magnetic-field based feature detector

Details Downhole magnetic-field based feature detector Downhole magnetic-field based feature detector

E - Fixed Constructions

21

B

E21B 47/12 (2006.01) E21B 47/09 (2006.01) G01N 27/82 (2006.01) G01V 3/26 (2006.01)

Patent

CA 2412273

An apparatus that is usable with a subterranean well includes a magnetometer and a circuit. The magnetometer indicates a strength of a magnetic field that at least partially extends through a portion of a downhole pipe. The circuit is coupled to the magnetometer to indicate a feature present in the pipe based on the indication from the magnetometer.

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