Seismic acquisition using phase-shifted sweeps
US9618636B2 · kind B2 · utility
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5References
16Claims
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Key dates
| Filing date | Mar 13, 2014 |
| Grant date | Apr 11, 2017 |
| Priority date | — |
| Expiry date | Jun 16, 2035 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01V1/38
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
A technique includes towing at least one seismic source in connection with a survey of a structure; and operating the seismic source(s) to fire shots, where each shot is associated with a frequency sweep. The technique includes varying phases of the frequency sweeps from shot to shot according to a predetermined phase sequence to allow noise in an energy sensed by seismic sensors to be attenuated.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.