AVA compliant pre-stack frequency spectrum enhancement of seismic data
US10191168B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jan 10, 2017 |
| Grant date | Jan 29, 2019 |
| Priority date | — |
| Expiry date | Mar 25, 2037 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01V2210/632
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
Generating spectrally enhanced seismic data expresses seismic data as a convolution of reflectivity and a seismic source wavelet. This seismic source wavelet varies over a sampling interval and defining a total amount of energy over the sampling interval. An enhanced seismic source wavelet that is a single-valued energy spike that yields the total amount of energy over the sampling interval is generated. In addition, the reflectivity is modified to preserve amplitude variation with angle. The reflectivity is convoluted with the enhanced seismic source wavelet and residual energy is added to the convolution to generate the spectrally enhanced seismic data.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.