Method for deghosting marine seismic streamer data with irregular receiver positions
US7986586B2 · kind B2 · utility
5Cited by
5References
12Claims
0Family size
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Key dates
| Filing date | Apr 8, 2008 |
| Grant date | Jul 26, 2011 |
| Priority date | — |
| Expiry date | Oct 7, 2029 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01V2210/56
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
Seismic data are obtained for each seismic source activation in a marine streamer and for each frequency, after being transformed to a spectral domain. An iterative conjugate gradient scheme, using a physically-based preconditioner, is applied to the transformed seismic data, to provide a least squares solution to a normal set of equations for a deghosting system of equations. The solution is inverse-transformed back to a space-time domain to provide deghosted seismic data.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.