Method of processing seismic data by providing surface offset common image gathers
US9632192B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | May 23, 2011 |
| Grant date | Apr 25, 2017 |
| Priority date | — |
| Expiry date | Nov 3, 2032 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01V2210/512
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
The method processes input including, for each of a plurality of shots at respective source locations, seismic traces recorded at a plurality of receiver locations. Offset-modulated data are also computed by multiplying the seismic data in each seismic trace by a horizontal offset between the source and receiver locations for said seismic trace. A depth migration process is applied to the seismic data to obtain a first set of migrated data, and to the offset-modulated data to obtain a second set of migrated data. For each shot, offset values are estimated and associated with respective subsurface positions, by a division process applied to the first and second sets of migrated data.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.