04010800 is referenced by 230 patents and cites 9 patents.

A method of extracting energy and chemical values from coal in situ including the steps of establishing passages among two or more coal seams underground and the surface of the ground wherein one coal seam is consumed by in situ combustion with the hot exit gases diverted through a second seam of coal enroute to the surface. The second seam of coal is dewatered, then subjected to pyrolysis, with enriched exit gases captured at the surface.

Title
Producing thin seams of coal in situ
Application Number
5/664570
Publication Number
4010800
Application Date
March 8, 1976
Publication Date
March 8, 1977
Inventor
Ruel C Terry
Denver
CO, US
Agent
Gary M Polumbus
Assignee
In Situ Technology
CO, US
IPC
E21B 43/24
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