Method of obtaining oil from oil shale deposits
US4230367A · kind A · utility
1Cited by
8References
10Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Apr 7, 1978 |
| Grant date | Oct 28, 1980 |
| Priority date | — |
| Expiry date | Apr 7, 1998 |
Classification
- Technology area (CPC E)Fixed Constructions
- CPC primaryE21B43/247
- WIPO fieldCivil engineering
- WIPO sectorOther fields
Abstract
The present method involves the initial mining of horizontally extending layers of oil-rich or "kerogen phase continuous" shale. The oil-rich shale is brought to the surface where it is retorted in above-ground retorts of one of the known types. The leaner oil shale which is still "in situ" is then explosively fragmented into the voids created when the oil-rich shale was mined, and oil is obtained as the fragmented shale is ignited, in accordance with known horizontal type modified in situ oil shale retorting techniques.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.