Comparative Study of Phase Behavior and CO2 Miscibility Characteristics of Live-Oil Samples from Different Members of the Yanchang Formation, Ordos Basin
Carbon dioxide-enhanced oil recovery (CO2-EOR) in ultra-low-permeability reservoirs requires a reliable understanding of CO2–oil phase behavior and minimum miscibility pressure (MMP), particularly where multiple stratigraphic members are co-developed. In this study, recovered live-oil samples from the Chang 4 + 5-produ...