Experiment and Simulation Study on the Special Phase Behavior of Huachang Near-Critical Condensate Gas Reservoir Fluid
Table 11
Calculated composition of the discharging condensate gas under different depletion pressures.
Component/(mol%)
24.48/(MPa)
22.00/(MPa)
20.00/(MPa)
17.00/(MPa)
14.00/(MPa)
11.00/(MPa)
8.00/(MPa)
5.00/(MPa)
CO2
/
0.68
0.69
0.71
0.72
0.72
0.72
0.72
N2
/
6.08
6.25
6.34
6.31
6.18
5.96
5.57
CH4
/
62.52
63.93
65.18
65.82
65.92
65.34
63.50
C2H6
/
11.85
11.94
12.11
12.33
12.62
13.01
13.51
C3H8
/
5.88
5.82
5.82
5.9
6.08
6.42
7.04
iC4H10
/
0.97
0.94
0.93
0.93
0.95
1.01
1.15
nC4H10
/
1.54
1.49
1.46
1.45
1.49
1.58
1.82
iC5H12
/
1.00
0.95
0.9
0.88
0.89
0.94
1.1
nC5H12
/
0.89
0.84
0.79
0.76
0.76
0.81
0.94
C6H14
/
1.97
1.8
1.63
1.53
1.49
1.54
1.8
C7~C8
/
5.03
4.26
3.49
2.97
2.62
2.47
2.7
C9~C10
/
1.05
0.71
0.43
0.27
0.17
0.12
0.1
C11+
/
0.53
0.37
0.23
0.15
0.1
0.07
0.06
/: there is not remaining discharging condensate gas, because the calculated saturation pressure is 24.47 MPa and the measured saturation pressure is 24.48 MPa.
