Method for evaluating and monitoring formation fracture treatment closure rates and pressures using fluid pressure waves
US10995609B2 · kind B2 · utility
1Cited by
3References
19Claims
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Key dates
| Filing date | May 1, 2018 |
| Grant date | May 4, 2021 |
| Priority date | — |
| Expiry date | Aug 22, 2038 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01V2210/646
- WIPO fieldCivil engineering
- WIPO sectorOther fields
Abstract
A method for characterizing a hydraulic fracture in a subsurface formation, includes inducing a pressure change in a well drilled through the subsurface formation. Pressure and/or a time derivative thereof is measured at a location proximate to a wellhead for a selected length of time. A conductivity of at least one fracture is determined using the measured at least one of pressure and the time derivative of pressure. A change in the determined conductivity with respect to time is determined.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.