Enhancing CO2 sequestration efficiency with CO2-soluble thickener
US12031413B2 · kind B2 · utility
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18Claims
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Key dates
| Filing date | Mar 2, 2022 |
| Grant date | Jul 9, 2024 |
| Priority date | — |
| Expiry date | Oct 21, 2042 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02C20/40
- WIPO fieldMaterials, metallurgy
- WIPO sectorChemistry
Abstract
A method for increasing CO2 sequestration efficiency in depleted reservoirs using a CO2 thickener is provided. The method may include the steps of introducing a thickened CO2 mixture into the depleted reservoir, where the thickened CO2 mixture comprises a mixture of CO2 and a CO2 thickener. The method may include using CO2 is in a liquid or supercritical state upon introduction into the depleted reservoir. The method may also include the step of using a CO2 thickener comprising a methyl acrylate-based copolymer, a CO2 solvent, and a solvent.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.