Enhanced oil recovery from western United States type oil shale using carbon dioxide retorting technique
US4502942A · kind A · utility
12Cited by
5References
9Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Feb 8, 1984 |
| Grant date | Mar 5, 1985 |
| Priority date | — |
| Expiry date | Feb 8, 2004 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC10G1/02
- WIPO fieldBasic materials chemistry
- WIPO sectorChemistry
Abstract
A retort process and product therefrom relating to the recovering of oil from Western-type U.S. shale utilizing carbon dioxide as a sweep gas. Other contributing factors with regard to increase in recovery include the heating rate, the sweep gas rate, particle size, and final temperature. The amount of increased recovery over conventional systems ranges up to about 25 percent.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.