Acoustic well cleaner

Wells – Sonic device – With specific downhole feature

Patent

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Details

1661776, 166311, E21B 2800, E21B 3708

Patent

active

055952437

ABSTRACT:
A method and apparatus are disclosed for cleaning the wellbore and the near wellbore region. A sonde is provided which is adapted to be lowered into a borehole and which includes a plurality of acoustic transducers arranged around the sonde. Electrical power provided by a cable is converted to acoustic energy. The high intensity acoustic energy directed to the borehole wall and into the near wellbore region, redissolves or resuspends the material which is reducing the permeability of the formation and/or restricting flow in the wellbore.

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M. Ward Widener, "The Development of Deep Submergence, air backed transducer", JASA vol. 80 (6) Dec. 1986 pp. 1852-1853.

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