Flexible piezoelectric for downhole sensing, actuation and...

Details Flexible piezoelectric for downhole sensing, actuation and... Flexible piezoelectric for downhole sensing, actuation and...

E - Fixed Constructions

21

B

E21B 47/12 (2006.01) E21B 47/00 (2006.01) E21B 47/16 (2006.01)

Patent

CA 2463019

Thin flexible piezoelectric transducers are bonded to or imbedded into oilfield tubular members or structural members. The transducers may be used to telemeter data as acoustic waves through the members. By proper spacing of transducers and phasing of driving signals, the transmitted signals can be directionally enhanced or encoded to improve transmission efficiency. The transducers may be used for health monitoring of the tubular or structural members to detect cracks, delaminations, or other defects. The flexible transducers are very thin so that overall dimensions of tubular or structural members are essentially unchanged by incorporation of the transducers.

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