Methods and materials for treating subterranean formations using a three-phase emulsion based fracturing fluid
US10457856B2 · kind B2 · utility
1Cited by
17References
8Claims
0Family size
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Key dates
| Filing date | Mar 20, 2019 |
| Grant date | Oct 29, 2019 |
| Priority date | — |
| Expiry date | Mar 20, 2039 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC09K2208/26
- WIPO fieldBasic materials chemistry
- WIPO sectorChemistry
Abstract
An emulsion for hydraulic fracturing to provide a one-step delivery of a fracturing fluid and a breaker for hydraulic fracturing of a hydrocarbon-bearing formation is provided. The emulsion for hydraulic fracturing is a water-in-oil-in-water emulsion having an internal aqueous phase that includes a breaker, an external aqueous phase that includes a fracturing fluid and a proppant, and an intermediate hydrocarbon phase separating the internal aqueous phase and external aqueous phase. The emulsion may include nanometer-sized or micrometer-sized particles to form a Pickering emulsion.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.