METHODS AND SYSTEMS FOR GAS PRODUCTION FROM A RESERVOIR
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United States of America Patent
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Issued Date -
Oct 13, 2011
app pub date -
Jul 31, 2009
filing date -
Aug 1, 2008
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Abandoned
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Abstract
A method and system for production of biogenerated gas from a zone in a reservoir are described. Microbial conversion of petroleum in the zone to biogenerated gas is stimulated. The biogenerated gas can be, for example, methane, hydrogen or carbon dioxide, or another gas. Gas including the biogenerated gas is produced from the zone to surface. While producing the gas, production parameters are monitored including reservoir pressure and an isotopic composition of the produced gas. Based on the monitored production parameters, at least one of stimulation of the microbial conversion to control the composition of the produced gas or gas saturation in the zone to control mobility of the biogenerated methane is adjusted.
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