Side-well injection and gravity thermal recovery processes
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United States of America Patent
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Dec 19, 2017
Grant Date -
Dec 19, 2013
app pub date -
Jun 6, 2013
filing date -
Jun 14, 2012
priority date (Note) -
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Abstract
Methods and systems relate to recovering hydrocarbons with an injection well placed at a bottom of a reservoir some horizontal distance from a producer, such that the injection well and producer may both be in a common horizontal plane. For some embodiments, the process includes co-injection of steam with a non-condensable gas, such as methane, ethane, propane, carbon dioxide, combustion products and combinations thereof. The non-condensable gas provides additional solution gas drive while the location of the injection well beside, instead of above, the producer increases production time before a steam chamber reaches a top of the reservoir, increasing thermal and recovery efficiency of the process.
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