Surfactant composition for the reinjection of produced water
US11299666B2 · kind B2 · utility
0Cited by
8References
16Claims
0Family size
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Key dates
| Filing date | Nov 14, 2017 |
| Grant date | Apr 12, 2022 |
| Priority date | — |
| Expiry date | Dec 19, 2037 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC09K8/604
- WIPO fieldBasic materials chemistry
- WIPO sectorChemistry
Abstract
The invention relates to the use of a non-ionic surfactant and an anionic surfactant for enhancing the injectivity of an injection well, wherein the non-ionic surfactant and the anionic surfactant are added to produced water, to form a reinjection stream which is injected into a subterranean formation by the injection well.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.