Treatment fluids comprising weakly emulsifying surfactants and associated methods
US10435620B2 · kind B2 · utility
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Key dates
| Filing date | Feb 5, 2018 |
| Grant date | Oct 8, 2019 |
| Priority date | — |
| Expiry date | Feb 5, 2038 |
Classification
- Technology area (CPC E)Fixed Constructions
- CPC primaryE21B43/267
- WIPO fieldBasic materials chemistry
- WIPO sectorChemistry
Abstract
Provided are acidic treatment fluids comprising a weakly emulsifying surfactant, an aqueous base fluid, and an acid. In some embodiments, the treatment fluids are capable of forming short-lived oil-in-acid emulsions due, at least in part, to the interaction of at least a portion of the weakly emulsifying surfactant with one or more oil or gas molecules within a subterranean formation.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.