Downlink based on pump noise

Details Downlink based on pump noise Downlink based on pump noise

E - Fixed Constructions

21

B

E21B 44/00 (2006.01) E21B 47/06 (2006.01) E21B 47/00 (2006.01)

Patent

CA 2599097

A method for determining a drilling event includes measuring a first signal from a sensor over a first selected time interval, measuring a second signal from the sensor over a second time interval, determining if a noise is reduced in the second signal.

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