Directional acoustic telemetry receiver
US7158446B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jul 23, 2004 |
| Grant date | Jan 2, 2007 |
| Priority date | — |
| Expiry date | Jul 23, 2024 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01V11/002
- WIPO fieldMeasurement
- WIPO sectorInstruments
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.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.