Research on CO₂ Quality Pipeline Transportation Based on Yanchang Oilfield CCUS

摘要

CO_(2) capture,utilization and storage (CCUS) is now recognized as an important technology in the global scope of CO_(2) emission reduction, pipeline transportation is the main center to connect the capture point and the use storage point, the first issue to CO2 pipeline transportation is to solve CO_(2) source quality research. Yanchang Oilfield has the advantages of CCUS, its coal chemical capture of CO_(2) contains different impurities. In the CO_(2) pipeline transportation, the impurity content in CO_(2) is based on its end use and the actual situation of pipeline. The impurities will affect the efficiency of CO_(2)-EOR, the choice of CO_(2) state equation, the changes of CO_(2) phase diagram and the capacity of pipeline transportation.