Apparatus and methods for acoustic signaling in subterranean...

Details Apparatus and methods for acoustic signaling in subterranean... Apparatus and methods for acoustic signaling in subterranean...

E - Fixed Constructions

21

B

E21B 47/14 (2006.01) E21B 47/16 (2006.01)

Patent

CA 2347933

Disclosed are new apparatus and methods for transmitting and enhancing the propagation of acoustic signals through a well tubing while providing a vent port. The apparatus and methods can be used to control subsurface well tools without wire or line connections to the surface.

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