Method to use lost circulation material composition comprising alkaline nanoparticle based dispersion and sodium bicarbonate in downhole conditions
US11299662B2 · kind B2 · utility
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14References
16Claims
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Key dates
| Filing date | Jul 7, 2020 |
| Grant date | Apr 12, 2022 |
| Priority date | — |
| Expiry date | Jul 7, 2040 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC09K2208/10
- WIPO fieldBasic materials chemistry
- WIPO sectorChemistry
Abstract
Provided is a lost circulation material that may consist essentially of an alkaline nanosilica dispersion and a sodium bicarbonate activator. Further provided are methods that may control lost circulation in a lost circulation zone in a wellbore by introducing the lost circulation material such that it contacts the lost circulation zone and forms a gelled solid in the lost circulation zone.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.