Process and apparatus for enhanced hydrocarbon recovery
US7866389B2 · kind B2 · utility
5Cited by
8References
22Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jan 15, 2008 |
| Grant date | Jan 11, 2011 |
| Priority date | — |
| Expiry date | Jan 27, 2028 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02C20/40
- WIPO fieldCivil engineering
- WIPO sectorOther fields
Abstract
A method for recovering hydrocarbons from a reservoir includes separating air into a nitrogen-rich gas and an oxygen-rich gas, oxidizing a hydrocarbon fuel with at least part of the oxygen-rich gas to produce steam and a CO2-rich gas, injecting at least part of the steam through an injection well into the reservoir to heat the hydrocarbons, purging the injection well with at least part of the nitrogen-rich gas, and injecting at least part of the CO2-rich gas into the reservoir containing the heated hydrocarbons.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.