Wells – Processes – Cyclic injection then production of a single well
Patent
1997-04-30
1999-02-02
Suchfield, George
Wells
Processes
Cyclic injection then production of a single well
166245, 166271, 1663051, 166308, E21B 4317, E21B 4325, E21B 4326, E21B 4330
Patent
active
058652485
ABSTRACT:
A method for increasing the permeability to methane of a subterranean coal formation by chemically stimulating the coal formation by injecting a gaseous oxidant into the coal formation and thereafter producing methane from the coal formation at an increased rate. The gaseous oxidant is ozone, oxygen or combinations thereof. The completion of wells penetrating a subterranean coal formation is facilitated by injecting a gaseous oxidant into the coal formation surrounding the well prior to forming a cavity in the coal formation around the well.
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Bross Stephen V.
Riese Walter C.
Scott F. Lindsey
Suchfield George
Vastar Resources Inc.
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