Microemulsion flowback recovery compositions and methods for making and using same
US10494564B2 · kind B2 · utility
2Cited by
158References
22Claims
0Family size
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Key dates
| Filing date | Apr 4, 2017 |
| Grant date | Dec 3, 2019 |
| Priority date | — |
| Expiry date | Aug 30, 2037 |
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.