Combination model for predicting stiffness coefficients absent Stoneley wave velocity data
US10073182B2 · kind B2 · utility
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30Claims
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Key dates
| Filing date | Jan 12, 2016 |
| Grant date | Sep 11, 2018 |
| Priority date | — |
| Expiry date | Nov 1, 2036 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01V2210/626
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
A combination model combining a velocity regression method (V-reg) with the modified ANNIE model may be used to predict the stiffness coefficients, Cij, in a transversely isotropic medium without using the Stoneley wave velocity. The stiffness coefficients may be used to characterize the surrounding formation, which may be used in hydraulic fracture modeling, stage/perforation design, and well completion operations (e.g., perforating and fracturing operations).
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.