Vibroseis acquisition method
US8811116B2 · kind B2 · utility
3Cited by
16References
3Claims
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Key dates
| Filing date | Feb 28, 2008 |
| Grant date | Aug 19, 2014 |
| Priority date | — |
| Expiry date | Jul 25, 2029 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01V2210/34
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
A method of performing a Vibroseis survey is described including the step of obtaining signals generated by activating vibratory sources at times T0 and T1, respectively, for a sweep period S and a listening time L such that T1<T0+S+L, wherein harmonic noise within the signals are attenuated using a first method to estimate the harmonics in a time-frequency interval in which harmonics of the sweep T1 overlap with the response to the fundamental of sweep T1 and using a second method for estimating the harmonics in a time-frequency with no overlap.
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