Title:
Process for producing viscous oil
United States Patent 3113620
Inventors:
Hemminger, Charles E.
Publication Date:
12/10/1963
Assignee:
EXXON RESEARCH ENGINEERING CO
Other Classes:
166/247, 376/275, 166/259
International Classes:
E21B43/263; E21B43/25
US Patent References:
| 3001775 | Vertical flow process for in situ retorting of oil shale | | | |