Additives for enhanced extraction of bitumen
US11834607B2 · kind B2 · utility
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9Claims
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Key dates
| Filing date | Jun 28, 2019 |
| Grant date | Dec 5, 2023 |
| Priority date | — |
| Expiry date | Jun 28, 2039 |
Classification
- Technology area (CPC E)Fixed Constructions
- CPC primaryE21B43/2406
- WIPO fieldBasic materials chemistry
- WIPO sectorChemistry
Abstract
A method for recovering bitumen that includes contacting the bitumen with steam and/or water and an organic amine having a boiling point at one atmosphere of greater than 145° C. and recovering the bitumen. The bitumen can be in oil sands, where the step of contacting includes contacting the oil sands having bitumen with the steam and/or water and the organic amine. Contacting the bitumen with the steam and/or water and the organic amine and recovering the bitumen can be done in-situ in a subterranean formation.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.