Method for enhanced oil recovery
US4344486A · kind A · utility
162Cited by
11References
12Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Feb 27, 1981 |
| Grant date | Aug 17, 1982 |
| Priority date | — |
| Expiry date | Feb 27, 2001 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF25J2260/80
- WIPO fieldCivil engineering
- WIPO sectorOther fields
Abstract
Disclosed is a method and apparatus for the enhanced recovery of liquid hydrocarbons from underground formations, said method comprising recovering a mixture comprising carbon dioxide and contaminants comprising hydrocarbon, hydrogen sulfide, or mixtures thereof, from an underground formation; combusting said mixture with an oxygen enriched gas to form a concentrated carbon dioxide stream; and injecting at least a portion of said concentrated carbon dioxide stream into an underground formation to enhance recovery of liquid hydrocarbon.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.