Seismic trace restoration using F-K filtering
US4860265A · kind A · utility
17Cited by
9References
22Claims
0Family size
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Key dates
| Filing date | Jan 25, 1988 |
| Grant date | Aug 22, 1989 |
| Priority date | — |
| Expiry date | Jan 25, 2008 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01V1/364
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
Method of restoring null traces in seismic records. The seismic record is transformed from the x-t domain to the f-k domain by a series of fast Fourier transforms. The f-k transform of the seismic record is filtered to retain only coherent events and the filtered f-k transform is inverse-transformed back to the x-t domain. A first determination of the restored trace corresponding to the null trace is selected and substituted for the null trace. The first determination of the restored trace is used to determine a fully restored trace.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.