04185692 is referenced by 174 patents and cites 8 patents.

In preparation for producing coal in situ two or more production wells are linked together through the coal seam by burned channels created by one or more blind hole burns.

Title
Underground linkage of wells for production of coal in situ
Application Number
5/924849
Publication Number
4185692
Application Date
July 14, 1978
Publication Date
January 29, 1980
Inventor
Ruel C Terry
Denver
CO, US
Assignee
In Situ Technology
CO, US
IPC
E21B 43/24
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