Nanopore Confinement Effect on the Phase Behavior of CO₂/Hydrocarbons in Tight Oil Reservoirs considering Capillary Pressure, Fluid-Wall Interaction, and Molecule Adsorption

Table 1

Comparison of phase equilibrium ratio between predicted results and CMG-Winprop results.

Fluid types	Components	Molar fraction (%)	CMG-Winprop results	Simulation results	Relative deviation (%)
Bulk fluids	C1	43.96	2.3186	2.3798	2.64
	C2-C4	21.03	1.0071	0.9943	1.27
	C5-C7	6.81	0.3447	0.3337	2.94
	C8-C9	7.59	0.1897	0.1823	3.90
	C10+	18.71	0.0068	0.0070	3.13
	CO2	1.90	1.6850	1.7255	2.40