Thickened CO2 in gravity drainage gas injection processes
US11867038B2 · kind B2 · utility
0Cited by
7References
24Claims
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Key dates
| Filing date | Dec 7, 2021 |
| Grant date | Jan 9, 2024 |
| Priority date | — |
| Expiry date | Dec 7, 2041 |
Classification
- Technology area (CPC E)Fixed Constructions
- CPC primaryE21B43/305
- WIPO fieldCivil engineering
- WIPO sectorOther fields
Abstract
A method and a system for oil recovery are provided. An exemplary method includes injecting thickened carbon dioxide (CO2) into the top of a reservoir containing oil. An interface is formed between the thickened CO2 and the oil. The oil is mobilized by the thickened CO2. The mobilized oil is recovered with a recovery well drilled below the reservoir.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.