FWI model domain angle stacks with amplitude preservation
US10520619B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Aug 30, 2016 |
| Grant date | Dec 31, 2019 |
| Priority date | — |
| Expiry date | Apr 28, 2038 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01V2210/632
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
A method, including: obtaining a seismic dataset that is separated into subsets according to predetermined subsurface reflection angle ranges; performing, with a computer, an acoustic full wavefield inversion process on each of the subsets, respectively, to invert for density and generate respective density models; generating acoustic impedances for each of the subsets, as a function of reflection angle, using the respective density models; and transforming, using a computer, the acoustic impedances for each of the subsets into reflectivity sections, wherein the transforming includes normalizing the reflectivity sections by their respective bandwidth.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.