Experimental Study on the Effect of CO₂ on Phase Behavior Characteristics of Condensate Gas Reservoir

Table 2

The well fluid composition of three condensate gas samples with different CO₂ content.

Component	The well fluid composition of sample 1 (mol%)	The well fluid composition of sample 2 (mol%)	The well fluid composition of sample 3 (mol%)	C11+ properties of the three samples
N2	0.983	0.960	1.278	The well fluid composition of sample 1 C11+ relative density. The well fluid composition of sample 1 molecular mass: 0.8259, 188.95 g/mol
CO2	41.554	51.611	24.011
C1	42.136	35.786	54.782
C2	3.615	3.002	4.700
C3	2.503	2.110	3.254
iC4	0.519	0.431	0.675	The well fluid composition of sample 2 C11+ relative density. The well fluid composition of sample 2 molecular mass: 0.8456, 195.82 g/mol
nC4	1.167	0.941	1.517
iC5	0.463	0.350	0.602
nC5	0.506	0.348	0.658
C6+	0.524	0.292	0.681
C7	0.439	0.303	0.571	The well fluid composition of sample 3 C11+ relative density. The well fluid composition of sample 3 molecular mass: 0.8006, 175.64 g/mol
C8	0.807	0.558	1.049
C9	0.843	0.583	1.096
C10	0.842	0.582	1.095
C11+	3.101	2.143	4.032