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Jingbian CCS Project has being conducted by Shaanxi Yanchang Petroleum Group and Northwest University since January 2012. CO 2 injection was started on September 4, 2012. There are five CO 2 injection wells in Jingbian Field. Till the end of June 2016, more than 60,000 tonnes of CO 2 were injected into Chang 6 reservoir group of Upper Triassic. CO 2 is captured from coal chemical company and transported by truck. CO 2 -EOR is expected to increase oil production in low porosity and extremely low permeability reservoir where water is hard to be injected. Through CO 2 -EOR, the current oil recovery is closing to 10% comparing with water recovery. At the same time, we systematically evaluated the capacity of Chang 6 reservoir. Safety of caprock seal ability and possible fracture distribution are studied as well. 3D reservoir model was made and reservoir simulation was used to evaluate CO 2 migration and predict the CO 2 leakage risk at different CO 2 injection stages. For the surface environmental monitoring, we studied the impact of CO 2 concentration on soil and microorganism, murine and fish was studied so that we might find indirect indicators for CO 2 leakage. Furthermore, 3D seismic baseline data was acquired in the second CCS site of Shaanxi Yanchang Petroleum Group.

Jingbian CCS-EOR pilot project is the first full chain CCS-EOR project in China. Sponsored by China Ministry of Science and Technology, Shaanxi Yanchang Petroleum (Group) Co. Ltd started to conduct CO2 capture from its coal chemical company and injected CO2 in Jingbian Field which cooperated with Northwest University from 2012. Our target is to inject at least 10,000 tons CO2 in Jingbian Field of Shaanxi Yanchang Petroleum (Group) Co. Ltd. At the same time, we are developing an integrated MMV (Measurement, Monitoring and Verification) technique to monitor the safety of CO2 sequestration from surface to subsurface by using environmental, geophysical monitoring methods and geological analysis. At this low porosity and low permeability reservoir of Jingbian Field, we planned to inject CO2 in more than 5 wells and tried to get enhanced oil recovery ratio about 5% to 8% and form CO2-EOR techniques and a demonstration pilot project so that we may apply CCS-EOR in Ordos Basin which is the largest oil and gas production basement in China. Jingbian CCS-EOR pilot project is the same as the other CCS projects in the world. It includes site selection, CO2 storage and injection equipment construction, CO2 capture equipment construction, CO2-EOR laboratory tests and MMV study.