Water-in-oil hydraulic fracturing fluid and method of using such
US11008503B2 · kind B2 · utility
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20Claims
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Key dates
| Filing date | Apr 24, 2018 |
| Grant date | May 18, 2021 |
| Priority date | — |
| Expiry date | Apr 24, 2038 |
Classification
- Technology area (CPC E)Fixed Constructions
- CPC primaryE21B43/26
- WIPO fieldBasic materials chemistry
- WIPO sectorChemistry
Abstract
A hydraulic fracturing fluid comprising a water-in-oil emulsion comprising (i) an aqueous solution, (ii) an oil, (iii) a first surfactant, and, optionally, (iv) at least one secondary surfactant selected from an emulsifying surfactant and/or a phosphate ester of ethoxylated alcohol or alkylphenol, and methods of making and using the same.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.