Method and system using wave-equation for obtaining traveltime and amplitude used in Kirchhoff migration
US11940579B2 · kind B2 · utility
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Key dates
| Filing date | Nov 8, 2021 |
| Grant date | Mar 26, 2024 |
| Priority date | — |
| Expiry date | May 20, 2042 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01V2210/67
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
Limitations in accuracy and computing power requirements impeding conventional Kirchhoff migration and reverse time migration are overcome by using the wave-equation Kirchhoff, WEK, technique with Kirchhoff migration. WEK technique includes forward-propagating a low-frequency wavefield from a shot location among pre-defined source locations, calculating an arrival traveltime of a maximum amplitude of the low-frequency wavefield, and applying Kirchhoff migration using the arrival traveltime and the maximum amplitude.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.