Methods and systems for deghosting marine seismic wavefields using cost-functional minimization
US10466377B2 · kind B2 · utility
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Key dates
| Filing date | Feb 28, 2012 |
| Grant date | Nov 5, 2019 |
| Priority date | — |
| Expiry date | Jun 12, 2035 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01V2210/56
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
Systems and methods to determine a deghosted wavefield are described. In one aspect, the method computationally transforms recorded wavefield data from the space-time domain to a spectral domain and computationally deghosts the wavefield data in the wavenumber-frequency domain based on iterative minimization of a cost functional. The deghosted wavefield data may be transformed from the spectral domain back to the space-time domain and stored.
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