Automatic data enhancement for full waveform inversion in the midpoint-offset domain
US11768303B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Apr 22, 2021 |
| Grant date | Sep 26, 2023 |
| Priority date | — |
| Expiry date | Nov 26, 2041 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01V2210/6222
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
This specification describes workflows for, but is not limited to, performing full waveform inversion (FWI) to build high resolution velocity models to improve the accuracy of seismic imaging of a subterranean formation. This specification describes processes to automatically edit and enhance S/N quality of seismic data (such as land seismic data) to prepare the datasets for FWI. The methods for automatic corrections and pre-processing include: automatic iterative surface-consistent residual statics calculation, automatic rejection of anomalous traces (such as dead traces), and the automatic correction of surface-consistent amplitude anomalies (such as by scalar or deconvolution approaches). The operations include automatic “muting” of noise before first arrivals.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.