Automated initial shut-in pressure estimation
US12037899B2 · kind B2 · utility
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9Claims
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Key dates
| Filing date | Feb 10, 2022 |
| Grant date | Jul 16, 2024 |
| Priority date | — |
| Expiry date | Feb 10, 2042 |
Classification
- Technology area (CPC E)Fixed Constructions
- CPC primaryE21B2200/20
- WIPO fieldCivil engineering
- WIPO sectorOther fields
Abstract
Water hammer is oscillatory pressure behavior in a wellbore resulting from the inertial effect of flowing fluid being subjected to an abrupt change in velocity. It is commonly observed at the end of large-scale hydraulic fracturing treatments after fluid injection is rapidly terminated. Factors affecting treatment-related water hammer behavior including field studies correlating water hammer characteristics to fracture intensity and well productivity.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.