Abstract
The first CCS-EOR (Enhanced Oil Recovery) pilot project in Shaanxi Province of China is being conducted. Although there are still many technical obstacles need to be solved, the major concern with this CCS (Carbon Capture and Sequestration) project is the risks of CO2 leaking from the subsurface storage site. While the industry worries about the efficiency of CO2-EOR in such low porosity and ultra- low permeability reservoir. In the present work, we assess the potential risks as well as reservoir properties in CO2 geological storage site in Jingbian Field, North of Shaanxi. We design a comprehensive monitoring system, which covers geophysical, geological and surface environmental monitoring, in order to detect plume behaviour and leakage of CO2 during different stages of CO2 sequestration. The study of monitoring data and CO2-EOR operation in Jingbian CCS pilot project will increase our understanding of underground process during CO2 injection and after site closure in Ordos Basin.
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