The CO2 EOR and Storage Project in Jilin oilfield is the first large CCS demonstration project in China for CO2 geological storage into depleting oil reservoirs. It aims at enhancing the understanding of CO2 EOR mechanisms, movement of CO2 in the reservoir and relevant physical-chemical reactions involved in the storage process, meanwhile gaining practical experience of monitoring and verification of CO2 storage technology in tight oil reservoirs. To have a better understanding of the naturally occurring and phase transformation between CO2 and reservoir fluid and provide accurate data for designing an oil development plan, we must know the interactions between CO2 and reservoir fluids. Hence, in the first part of this paper the CO2 and reservoir fluid phase equilibrium is measured with laboratory experiment, then the collected data is used to calculate the theory and practical CO2 Sequestration capacities.
Estimation of CO2-Oil Phase Equilibrium and CO2 Storage Capacity in Jilin Oil Field
2012
5 Seiten
Conference paper
English
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