Integrated methods for reducing formation breakdown pressures to enhance petroleum recovery
US11448054B2 · kind B2 · utility
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3References
12Claims
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Key dates
| Filing date | May 19, 2020 |
| Grant date | Sep 20, 2022 |
| Priority date | — |
| Expiry date | Aug 1, 2040 |
Classification
- Technology area (CPC E)Fixed Constructions
- CPC primaryE21B49/00
- WIPO fieldCivil engineering
- WIPO sectorOther fields
Abstract
A method of increasing hydrocarbon recovery from a wellbore in a tight formation with greater breakdown pressures, the method including using hydro-jetting to effect a plurality of oriented cavities or discoidal grooves in the horizontal portion of the wellbore to overcome near-wellbore stresses, injecting a thermally controlled fluid into the wellbore to alter the temperature of the formation and lower stresses, and then fracturing the formation to generate a series of fractures that can be formed in a planar formation.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.