Method for datumizing seismic data by forward modeling
US5502687A · kind A · utility
6Cited by
1References
15Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Jul 1, 1993 |
| Grant date | Mar 26, 1996 |
| Priority date | — |
| Expiry date | Jul 1, 2013 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01V2210/522
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
Disclosed is a method for processing geophysical data that have been gathered over irregular topography. According to the method, a datum is established that lies above the highest topographic peak. The data are time-shifted from the surface to the datum using a replacement velocity that is an extrapolation of the underlying formation velocity. The wavefields beneath the surface are forwardly modeled using a modeling velocity substantially equal to zero. Between the surface and the datum, the wavefields are upwardly modeled using the replacement velocity.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.