Solvent separation in a solvent-dominated recovery process
US8752623B2 · kind B2 · utility
6Cited by
157References
33Claims
0Family size
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Key dates
| Filing date | Jan 10, 2011 |
| Grant date | Jun 17, 2014 |
| Priority date | — |
| Expiry date | Mar 16, 2032 |
Classification
- Technology area (CPC E)Fixed Constructions
- CPC primaryE21B43/40
- WIPO fieldCivil engineering
- WIPO sectorOther fields
Abstract
In solvent-dominated recovery processes for recovering In situ oil, including bitumen, the produced fluid stream includes oil and solvent. The solvent is preferably recovered and reinjected into the reservoir. In previously described methods, solvent is removed from the oil/solvent mixture. In the present method, the oil/solvent mixture is first separated into a heavier stream and a lighter stream from which solvent is independently removed.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.