In-situ combustion method for recovery of heavy oil utilizing oxygen and carbon dioxide as initial oxidant
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United States of America Patent
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Oct 18, 1983
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N/A
app pub date -
Nov 2, 1981
filing date -
Nov 2, 1981
priority date (Note) -
Expired
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Abstract
An in-situ combustion method for recovering viscous oil from a subterranean, viscous oil-containing formation comprising injecting a mixture of essentially pure oxygen and carbon dioxide into the formation to initiate an in-situ combustion operation followed by injecting essentially pure oxygen.
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