Recovering hydrocarbons with a mixture of carbon dioxide and trichloroethane
US5117907A · kind A · utility
12Cited by
10References
10Claims
0Family size
Inventor
Key dates
| Filing date | Dec 24, 1990 |
| Grant date | Jun 2, 1992 |
| Priority date | — |
| Expiry date | Dec 24, 2010 |
Classification
- Technology area (CPC E)Fixed Constructions
- CPC primaryE21B43/40
- WIPO fieldCivil engineering
- WIPO sectorOther fields
Abstract
The invention is a method of recovering petroleum hydrocarbons from an underground formation penetrated by at least one injection well and at least one production well, which comprises injecting through an injection well a mixture of carbon dioxide and about 0.1% to about 20% by weight trichloroethane at a temperature and pressure above the bubble point of the mixture, and recovering hydrocarbons and other fluids at a production well.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.