Emulsion preventer for completion brines
US10537829B2 · kind B2 · utility
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14Claims
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Key dates
| Filing date | Oct 18, 2016 |
| Grant date | Jan 21, 2020 |
| Priority date | — |
| Expiry date | Jan 16, 2038 |
Classification
- Technology area (CPC E)Fixed Constructions
- CPC primaryE21B43/26
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
Emulsion-preventing compositions may contain one or more sorbitan esters; and one or more non-ionic surfactants; where the ratio of the one or more sorbitan esters to the one or more non-ionic surfactants is in the range of 1:1 to 1:5. Methods may include contacting an emulsion with a treatment fluid, the treatment fluid containing one or more sorbitan esters and one or more non-ionic surfactants, where the ratio of the one or more sorbitan esters to the one or more non-ionic surfactants is in the range of 1:1 to 1:5; and separating the emulsion into an aqueous phase and an oleaginous phase.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.