Hole depth sensing

Details Hole depth sensing Hole depth sensing

E - Fixed Constructions

21

B

E21B 47/04 (2006.01) E21B 47/09 (2006.01) E21B 47/12 (2006.01)

Patent

CA 2616892

A method of sensing and transmitting hole depth information comprises monitoring, at the surface, the extension of the hole as drilling progresses, determining when the hole depth has extended by a predetermined distance, and sending an increment signal to a telemetry device.

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