Methods and devices for joint time-lapse full-waveform inversion with a time-lag cost function
US11880009B2 · kind B2 · utility
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Key dates
| Filing date | Jul 20, 2021 |
| Grant date | Jan 23, 2024 |
| Priority date | — |
| Expiry date | Dec 24, 2041 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01V2210/51
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
Methods and devices according to various embodiments perform full-wave inversion jointly for datasets acquired at different times over the same underground formation using a time-lag cost function with target regularization terms. This approach improves the 4D signal within reservoirs and suppresses 4D noise outside.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.