Method for enhanced oil recovery by means of injection of an aqueous polymer composition having monomeric units from an LCST
US11578255B2 · kind B2 · utility
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1References
20Claims
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Assignee
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Key dates
| Filing date | Nov 4, 2019 |
| Grant date | Feb 14, 2023 |
| Priority date | — |
| Expiry date | Nov 4, 2039 |
Classification
- Technology area (CPC E)Fixed Constructions
- CPC primaryE21B43/16
- WIPO fieldMacromolecular chemistry, polymers
- WIPO sectorChemistry
Abstract
This invention relates to a process of enhanced oil recovery by sweeping an underground formation comprising injecting into the underground formation an injection fluid comprising at least one water-soluble LCST macromonomeric polymer.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.