Lubricant for monovalent and divalent brines
US11760920B1 · kind B1 · utility
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5References
24Claims
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Key dates
| Filing date | Apr 6, 2022 |
| Grant date | Sep 19, 2023 |
| Priority date | — |
| Expiry date | Apr 6, 2042 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC09K2208/34
- WIPO fieldBasic materials chemistry
- WIPO sectorChemistry
Abstract
Methods and compositions for using lubricants in subterranean formations, and specifically lubricants that comprise certain oils, surfactants and solvents, and methods for their use, are provided. In one embodiment, the methods include introducing a treatment fluid that includes a base fluid and a lubricant including at least one vegetable oil, at least one nonionic surfactant, and at least one cosolvent into at least a portion of a subterranean formation.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.