Seismic acquisition and filtering
US8818763B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Aug 5, 2011 |
| Grant date | Aug 26, 2014 |
| Priority date | — |
| Expiry date | Oct 21, 2032 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01V2210/47
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
Designing a multi-dimensional Finite Impulse Response FIR digital filter to attenuate the coherent noise while preserving reflection signals on seismic data, particular in land seismics, includes computing filter coefficients to minimize an l-norm function of differences between a response of a filter with the computed coefficients and a predetermined response which attenuates signals outside a predetermined range of slowness relative to signals within the predetermined range of slowness. Additional constraints may be imposed on the coefficients to improve the attenuation of signals outside the predetermined range of slowness of the desired reflection signals, and/or to improve uniformity within the desired range.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.