Title:
Thermal process for in-situ decomposition of oil shale
United States Patent 2780449

Inventors:
Fisher, Frank R.
Pelzer, Harry L.
Publication Date:
02/05/1957
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Assignee:
SINCLAIR OIL AND GAS COMPANY
Primary Class:
166/259
Other Classes:
175/12, 166/261, 166/260
International Classes:
E21B43/243; E21B43/16
US Patent References:
2630307Method of recovering oil from oil shale
2642943Oil recovery process
2695163Method for gasification of subterranean carbonaceous deposits