Re-crosslinking particle gel for CO2 conformance control and CO2 leakage blocking
US11214729B2 · kind B2 · utility
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26References
20Claims
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Key dates
| Filing date | Aug 27, 2019 |
| Grant date | Jan 4, 2022 |
| Priority date | — |
| Expiry date | Mar 2, 2040 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02P90/70
- WIPO fieldBasic materials chemistry
- WIPO sectorChemistry
Abstract
The present invention generally relates to the composition of particle gels for CO2-EOR and CO2 storage. More particularly, CO2 resistant particle gels are provided that can re-crosslink at subterranean conditions. These particle gels can be deployed to improve the conformance of CO2 flooding, CO2 huff-puff, or Water-Alternative-Gas (WAG). The applications may also involve CO2 storage, such as the blocking of CO2 leakage and similar CO2 processing.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.