Wells – Processes – Cyclic injection then production of a single well
Patent
1996-01-31
1997-09-23
Suchfield, George A.
Wells
Processes
Cyclic injection then production of a single well
166245, 166268, 166271, 1663051, 166308, E21B 4317, E21B 4326, E21B 4327, E21B 4340
Patent
active
056694440
ABSTRACT:
A method for increasing the production of methane from a subterranean coal formation by chemically stimulating the formation of cleats in the coal formation in order to facilitate removal of formation water, and increase the rate of methane production from the coal formation is disclosed. The method comprises injecting an aqueous oxidant solution into the coal formations to stimulate the formation of cleats in the coal formation; and thereafter producing methane from the coal formations at an increased rate. The aqueous oxidant solution comprises hypochlorite, metallic salts of hypochlorous acid, hydrogen peroxide, ozone, oxygen and combinations thereof.
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Bross Stephen V.
Riese Walter C.
Scott F. Lindsey
Suchfield George A.
Vastar Resources Inc.
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