Method and apparatus for remote control of wellbore end devices

Details Method and apparatus for remote control of wellbore end devices Method and apparatus for remote control of wellbore end devices

1997-06-26

2000-02-01

Moskowitz, Nelson

Communications, electrical: acoustic wave systems and devices

Wellbore telemetering

Through drill string or casing

367911, 3408556, 166166, E21B 4300, E21B 3416, E21B 4908

Patent

active

060210958

ABSTRACT:
A wellbore remote control system is disclosed which includes (1) a transmission apparatus for generating at least one acoustic transmission having a particular transmission frequency, (2) a reception apparatus which includes an electronic circuit (preferably digital) which detects and identifies the acoustic transmissions, and which provides an actuation signal to an electrically-actuated wellbore tool if a match is detected.

REFERENCES:
patent: 4038632 (1977-07-01), Parker
patent: 4073341 (1978-02-01), Parker
patent: 4896722 (1990-01-01), Upchurch
patent: 5166908 (1992-11-01), Montgomery
patent: 5319610 (1994-06-01), Airhart
patent: 5458200 (1995-10-01), Lagerlef et al.

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