Apparatus and method of identifying rock properties while...

Details Apparatus and method of identifying rock properties while... Apparatus and method of identifying rock properties while...

E - Fixed Constructions

21

B

E21B 47/16 (2006.01)

Patent

CA 2519822

Acoustic signals generated by drilling a bore hole with a drill bit are received at sensors placed in the drill string. The acoustic signals received by the sensors are processed, e.g. using a Fourier transform, and a characteristic of the acoustic signals is used to identify lithology, rock strength, presence of oil, presence of gas, change in lithology, or the like.

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