Salt-free invert emulsions for use in subterranean formation operations
US11174422B2 · kind B2 · utility
1Cited by
6References
20Claims
0Family size
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Key dates
| Filing date | Oct 27, 2015 |
| Grant date | Nov 16, 2021 |
| Priority date | — |
| Expiry date | Apr 30, 2036 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC09K2208/28
- WIPO fieldBasic materials chemistry
- WIPO sectorChemistry
Abstract
Salt-free invert emulsions having an external phase comprising a hydrocarbon fluid, and an internal phase comprising a hygroscopic fluid selected from the group consisting of an amino alcohol, a glycol, an amine glycol, and any combination thereof. Methods including introducing the salt-free invert emulsion into a subterranean formation and performing a subterranean formation operation.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.