Method for underground burning of coal for energy

Details Method for underground burning of coal for energy Method for underground burning of coal for energy

1984-05-03

1985-12-10

Suchfield, George A.

Wells

Processes

In situ combustion

122 44R, 165 45, 166 57, 166302, E21B 43243

Patent

active

045573280

ABSTRACT:
A method and apparatus for generating heat from in situ in ground burning of coal. The method described involves lowering a boiler connected to a water line and a steam line into burning coal region and heating the boiler to produce steam from water. The steam is useable to drive steam turbine/generator equipment or as a heat source. The apparatus for generating steam includes a boiler with a number of heat circulating tubes to quickly heat the water. The boiler is fed by a small diameter water line. Steam from the boiler is removed through a larger diameter line.

REFERENCES:
patent: 3160208 (1964-12-01), Jorda
patent: 3274769 (1966-09-01), Reynolds
patent: 3952802 (1976-04-01), Terry
patent: 3987852 (1976-10-01), Terry
patent: 4018279 (1977-04-01), Reynolds et al.
patent: 4019577 (1977-04-01), Fitch et al.
patent: 4089373 (1978-05-01), Reynolds et al.

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