Measuring the weight on a drill bit during drilling...

Details Measuring the weight on a drill bit during drilling... Measuring the weight on a drill bit during drilling...

2004-10-05

2008-07-01

Dang, Hoang (Department: 3672)

Radiant energy

Geological testing or irradiation

With drill or drilling

C175S040000

Reexamination Certificate

active

07394064

ABSTRACT:
One embodiment includes an apparatus that includes a coherent radiation source to emit coherent radiation through a signal carrier that is positioned along at least a part of a length of a downhole drilling component. The apparatus also includes a receiver to receive the coherent radiation that is to be emitted through the signal carrier.

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“International Search Report and Written Opinion for Application No. PCT/US2005/028915, date mailed Dec. 16, 2005”, 11 Pages.

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