Methods for preparing invert emulsions using dibasic ester solvents
US11384281B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Sep 17, 2019 |
| Grant date | Jul 12, 2022 |
| Priority date | — |
| Expiry date | Mar 22, 2040 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC09K2208/28
- WIPO fieldBasic materials chemistry
- WIPO sectorChemistry
Abstract
Methods for preparing and using invert emulsions and treatment fluids including the invert emulsions are provided herein. In one or more embodiments, the methods of the present disclosure comprise providing an aqueous fluid comprising water and one or more water-soluble monomers; providing an oil-based fluid comprising a solvent and one or more polymerization surfactants, wherein the solvent comprises a linear or branched dibasic ester; combining the aqueous fluid and the oil-based fluid to form an invert emulsion that comprises an aqueous phase comprising the aqueous fluid and an oil phase comprising the oil-based fluid; and polymerizing at least a portion of the one or more water-soluble monomers in the invert emulsion.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.