Method for effectively handling CO2-hydrocarbon gas mixture in a miscible CO2 flood for oil recovery
In a CO2 miscible displacement enhanced oil recovery process, produced CO2-hydrocarbon gas containing from more than the maximum CO2 content tolerable in a fuel gas up to about 70 volume percent CO2 is reinjected into a small portion of the well pattern volume and produced CO2-hydrocarbon gas contai...
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Main Author | |
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Format | Patent |
Language | English |
Published |
17.05.1988
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Edition | 4 |
Subjects | |
Online Access | Get full text |
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Summary: | In a CO2 miscible displacement enhanced oil recovery process, produced CO2-hydrocarbon gas containing from more than the maximum CO2 content tolerable in a fuel gas up to about 70 volume percent CO2 is reinjected into a small portion of the well pattern volume and produced CO2-hydrocarbon gas containing more than 70 volume percent CO2 is reinjected into a larger portion of the well pattern volume. The method provides a more effective utilization of CO2 in a CO2 miscible enhanced oil recovery process while maintaining most of the oil-containing formation under miscible conditions. |
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Bibliography: | Application Number: US19870052301 |