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...

2008-07-29

2008-07-29

Gay, Jennifer H. (Department: 3676)

Boring or penetrating the earth

With signaling, indicating, testing or measuring

Indicating, testing or measuring a condition of the formation

C175S039000, C175S040000, C702S009000

Reexamination Certificate

active

07404456

ABSTRACT:
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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UK Search Report, Application No. GB0519972.4, 3 pgs.
UK Examination Report, Application No. GB0519972.4, 3 pgs.

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