Method and system of processing seismic data by providing surface aperture common image gathers
US10557956B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Mar 31, 2016 |
| Grant date | Feb 11, 2020 |
| Priority date | — |
| Expiry date | Oct 8, 2036 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01V2210/59
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
The method processes, for each of a plurality of shots at respective source locations, seismic traces recorded at a plurality of receiver locations. Common-mid-point-modulated data are also computed by multiplying the seismic data in each seismic trace by a horizontal mid-point. A depth migration process is applied to the seismic data to obtain a first set of migrated data, and to the mid-point-modulated data to obtain a second set of migrated data. For each shot, aperture values are estimated and associated with respective subsurface positions. A migrated value for a depth and an aperture in a surface aperture common image gather at a horizontal position is a migrated value of the first set of migrated data for a shot such that the estimated aperture value associated with that subsurface position is the aperture.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.