Directional acoustic telemetry receiver

Details Directional acoustic telemetry receiver Directional acoustic telemetry receiver

2007-01-02

2007-01-02

Edwards, Jr., Timothy (Department: 2612)

Communications, electrical: acoustic wave systems and devices

Wellbore telemetering

C340S854300, C340S854400

Reexamination Certificate

active

10897559

ABSTRACT:
Acoustic telemetry devices and methods that provide directional detection. In one embodiment, a disclosed acoustic telemetry device comprises at least two acoustic sensors and an electronics module. A first of the acoustic sensors detects a communication signal that propagates along a tubing string in a first direction. A second of the acoustic sensors is configured to detect the communication signal before the first acoustic sensor. The electronics module combines the detection signals from the acoustic sensors to obtain a combined signal that substantially excludes signals propagating in a direction opposite to the communication signal. Such signal suppression may significantly enhance the communication signal's signal-to-noise ratio, thereby increasing channel capacity. The acoustic telemetry device may be configured to support logging while drilling and/or full-duplex communication.

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