Acoustic transducers for tubulars

Details Acoustic transducers for tubulars Acoustic transducers for tubulars

2004-11-30

2008-12-02

Keith, Jack W (Department: 3663)

Communications, electrical: acoustic wave systems and devices

Seismic prospecting

Well logging

C367S035000, C181S102000, C181S105000, C181S106000

Reexamination Certificate

active

07460435

ABSTRACT:
Acoustic transducers configured with transducer elements disposed on an arch or arcuate shaped member adapted to fit in juxtaposition around a tubular. The arcuate shaped member is adapted with conductors to provide a voltage to the transducer elements. One embodiment uses a metallic arcuate shaped member. Embodiments implemented as sources are used to excite borehole acoustic modes. Some embodiments provide phased array acoustic energy excitation/signal reception. The transducers are covered with a sealer in a liquid-free configuration and shields are used to protect the transducers.

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