High density brine with low crystallization temperature
US11149180B2 · kind B2 · utility
1Cited by
7References
9Claims
0Family size
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Key dates
| Filing date | Sep 26, 2016 |
| Grant date | Oct 19, 2021 |
| Priority date | — |
| Expiry date | Sep 26, 2036 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC09K2208/10
- WIPO fieldBasic materials chemistry
- WIPO sectorChemistry
Abstract
A wellbore fluid comprising a first aqueous base fluid and a plurality of silica nanoparticles suspended in the first aqueous base fluid. The nanoparticles are present in the fluid in an amount to have an effect of decreasing a crystallization temperature by at least 4 to 55° F. as compared to a second aqueous base fluid without the silica nanoparticles.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.