Microemulsion flowback recovery compositions and methods for making and using same
US11162018B2 · kind B2 · utility
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21Claims
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Key dates
| Filing date | Nov 27, 2019 |
| Grant date | Nov 2, 2021 |
| Priority date | — |
| Expiry date | Nov 27, 2039 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC09K8/04
- WIPO fieldBasic materials chemistry
- WIPO sectorChemistry
Abstract
A microemulsion well stimulation compositions for flowback water recovery includes an aqueous system, a surfactant system, a solvent system, and optionally a winterizing system, where the solvent system includes a dibasic ester or a plurality of dibasic esters and the composition is non-flammable, non-combustible, non-hazardous, and/or environmentally friendly, while demonstrating comparable or superior flowback recovery performance compared to known water recovery formulations that utilize more flammable components.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.