Method for removing coherent noise from seismic data through f-x filtering
US5067112A · kind A · utility
57Cited by
5References
4Claims
0Family size
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Key dates
| Filing date | Jan 4, 1991 |
| Grant date | Nov 19, 1991 |
| Priority date | — |
| Expiry date | Jan 4, 2011 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01V2210/3246
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
In seismic exploration, seismic reflections from subsurface formations are recorded in the form of a time-distance array of seismic traces. This array is transformed into a frequency-distance domain. Frequencies at which coherent noise resides within the frequency-distance domain are determined. Wavenumbers corresponding to such frequenices are removed by filtering. The wavenumber-filtered, frequency-distance domain of seismic traces are then transformed back into a time-distance array of seismic traces.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.