Inorganic fine particle reinforced foam system for oil-gas field and preparation method thereof
US9777210B2 · kind B2 · utility
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Key dates
| Filing date | Aug 4, 2016 |
| Grant date | Oct 3, 2017 |
| Priority date | — |
| Expiry date | Aug 4, 2036 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC09K8/94
- WIPO fieldBasic materials chemistry
- WIPO sectorChemistry
Abstract
A novel inorganic fine particle reinforced foam system for an oil-gas field and preparation method thereof. The reinforced foam system comprises a gas phase and a liquid phase; the gas phase is nitrogen, carbon dioxide or the air; the liquid phase is prepared from, by mass: 0.2-0.8 wt % of a foaming agent, 0.5-2.0 wt % of novel inorganic fine particles and balance of water; the novel inorganic fine particles are fine particulate matter with diameters being smaller than or equal to 2.5 microns captured and screened from the atmosphere.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.