Wells – Processes – With indicating – testing – measuring or locating
Reexamination Certificate
2007-06-26
2007-06-26
Gay, Jennifer H. (Department: 3672)
Wells
Processes
With indicating, testing, measuring or locating
C340S854300, C340S854400
Reexamination Certificate
active
10409515
ABSTRACT:
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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Fripp Michael L.
Rodgers John P.
Schultz Roger L.
Collins Giovanna M
Gay Jennifer H.
Halliburton Energy Service,s Inc.
Piper Michael W.
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