Diluent-enhanced in-situ combustion hydrocarbon recovery process
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United States of America Patent
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Jul 26, 2011
Grant Date -
Dec 17, 2009
app pub date -
Feb 27, 2007
filing date -
Feb 27, 2006
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Abstract
A modified process for recovering oil from an underground reservoir using the toe-to-heel in situ combustion process. A diluent, namely a hydrocarbon condensate, is injected within a horizontal wellbore portion, preferably proximate the toe, of a vertical-horizontal well pair, or alternatively into an adjacent injection well, or both, to increase mobility of oil.
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