Engineered methods and materials for wellbore strengthening in subterranean operations
US9725975B2 · kind B2 · utility
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6References
13Claims
0Family size
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Key dates
| Filing date | Oct 15, 2014 |
| Grant date | Aug 8, 2017 |
| Priority date | — |
| Expiry date | Jun 12, 2035 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC09K2208/08
- WIPO fieldCivil engineering
- WIPO sectorOther fields
Abstract
A method of wellbore strengthening may include providing a wellbore strengthening fluid comprising a drilling fluid, a particulate, and a fiber; introducing the wellbore strengthening fluid into a wellbore penetrating a subterranean formation; and forming a plug comprising the particulate and the fiber in a void near the wellbore, the plug being capable of maintaining integrity at about 1000 psi or greater overbalance pressure.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.