Gaussian beam migration imaging method and device
US10261206B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Nov 10, 2017 |
| Grant date | Apr 16, 2019 |
| Priority date | — |
| Expiry date | Dec 17, 2037 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01V2210/51
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
Techniques for Gaussian beam migration imaging are described herein. According to some aspects, a seismic wave field of an earth surface is represented in the form of superposition of Gaussian beams with a present curvature parameter in a time-space domain. A width of the Gaussian beam based function and a spacing between centers of adjacent Gaussian beams of the seismic wave field of the earth surface are set as a preset width and spacing, respectively. A decomposition model is established according to the set seismic wave field. An optimization solution algorithm is applied, based on seismic data and a medium velocity model, to the decomposition model to obtain multiple waveform functions. Gaussian beams corresponding to the multiple waveform functions are propagated, based on the medium velocity model. Migration imaging is performed to obtain migration imaging results.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.