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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Bibliographic Details
Main Author ALAMEDDINE; BASSEM R
Format Patent
LanguageEnglish
Published 17.05.1988
Edition4
Subjects
EARTH DRILLING
EARTH DRILLING, e.g. DEEP DRILLING
FIXED CONSTRUCTIONS
MINING
OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR ASLURRY OF MINERALS FROM WELLS
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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.
Bibliography:Application Number: US19870052301