Solvent surveillance in solvent-based heavy oil recovery processes
US9222929B2 · kind B2 · utility
2Cited by
51References
25Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Nov 10, 2010 |
| Grant date | Dec 29, 2015 |
| Priority date | — |
| Expiry date | Jan 10, 2033 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01N33/2823
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
The present disclosure relates to solvent surveillance in heavy oil production. A method includes the steps of measuring an amount of a native bitumen marker (NBM) in a heavy oil, measuring an amount of the NBM in a recovery-aid solvent, measuring an amount of the NBM in a blend including the heavy oil and the recovery-aid solvent, and applying a blending model to determine a fraction of the recovery-aid solvent in the blend.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.