Impacts of injection temperature on the CO2 injection capacity in the different sloping formations.

摘要: The CO2 injection capacity directly affects the storage efficiency. Injection temperature and formation sloping degree affect capacity. Based on actual geological conditions of Shiqianfeng Formation in Ordos Basin China, a three-dimensional (3D) simulation model was established to evaluate pressure, temperature, spatial distribution, amount. A total 17 schemes were carried out using TOUGH2–ECO2N fluid property module. results showed that had significant impact different formations. Increasing resulted increased gas phase, dissolved amount, while decreasing concentration, pressure changed obviously with degree. larger was, less Higher smaller more favorable for injection, stronger, signaling it should be selected store future.