Method for enhancing seismic data
US5150331A · kind A · utility
20Cited by
6References
20Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Mar 25, 1991 |
| Grant date | Sep 22, 1992 |
| Priority date | — |
| Expiry date | Mar 25, 2011 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01V2210/3246
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
A method for enhancing seismic data is described for attenuating undesired coherent noise in both stacked seismic signals as well as in unstacked ordered gathers of seismic signals. In particular, coherent noise, as represented by reflection events, is identified to be attenuated, and a datum line is constructed in the seismic data. Each seismic signal can then be nonhyperbolically time-shifted so as to align the identified reflection event with the datum line. The seismic data can then be filtered with a dip filter having a dip angle corresponding to that of the datum line to attenuate the aligned reflection event.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.