Systems and methods for multiple-code continuous-wave distributed acoustic sensing
US10139268B2 · kind B2 · utility
16Cited by
13References
21Claims
0Family size
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Key dates
| Filing date | Jan 21, 2014 |
| Grant date | Nov 27, 2018 |
| Priority date | — |
| Expiry date | Aug 20, 2034 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01V2210/1429
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
A method and device for monitoring oil field operations with a fiber optic distributed acoustic sensor (DAS) that uses a continuous-wave fiber optic distributed acoustic sensor with a very small spatial sampling while being able to sense acoustic events that have a large bandwidth by employing a demodulation/decoding method utilizing multiple spread-spectrum codes.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.