Multifunctional particles for enhanced oil recovery
US10442982B2 · kind B2 · utility
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19Claims
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Key dates
| Filing date | May 20, 2016 |
| Grant date | Oct 15, 2019 |
| Priority date | — |
| Expiry date | Sep 19, 2036 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC09K2208/10
- WIPO fieldBasic materials chemistry
- WIPO sectorChemistry
Abstract
To deliver surfactants or tracers to underground oil fields, inorganic encapsulated surfactant nanoparticles or microparticles that are stable for several weeks under high temperature and high salt conditions can be used.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.