Distributed acoustic wave detection
US8408064B2 · kind B2 · utility
60Cited by
31References
21Claims
0Family size
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Key dates
| Filing date | Nov 4, 2009 |
| Grant date | Apr 2, 2013 |
| Priority date | — |
| Expiry date | Jul 9, 2031 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01V8/16
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
A distributed acoustic wave detection system and method is provided. The system may include a fiber optic cable deployed in a well and configured to react to pressure changes resulting from a propagating acoustic wave and an optical source configured to launch interrogating pulses into the fiber optic cable. In addition, the system may include a receiver configured to detect coherent Rayleigh noise produced in response to the interrogating pulses. The CRN signal may be use to track the propagation of the acoustic wave in the well.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.