Page 132 - PVT Property Correlations

Gas Condensates Chapter | 5 109

A1 A2 A3 A4
P sat 5 A 0 3 R vi 3 X1YÞ 3 STO 3 Tr
ð
SG1
X 5
P sep1
ð5:14Þ
SG2
Y 5
P sep2
A0 5 762; A1 52 0:06; A2 52 0:017; A3 5 0:96; and A4 5 0:38

Then dew point pressure is calculated to be 6475 psia
2
R vi 5 A0 3 e ðA1 3 ðX1YÞÞ 1 A2 3 STO 1 A3 3 STOÞ 1 A4 1 A5 3 TrŠ
ð
½
ð5:15Þ

R v 5 A0 3 P 2 1 A1 3 PÞ 1 A2 1 e ðA3 3 X1A4 3 YÞ 1 e ðA5 3 VÞ 3 R vi
ð
ð5:16Þ
X 5 SG1 3 P sep1
Y 5 SG2 3 P sep2
STO
V 5
Tr
where
A0 52 2:0E 2 09; A1 5 2:3E 2 04 A2 5 2:9E 2 01; A3 52 1:4E 2 03;
A4 5 2:4E 2 03; and A5 52 2:3E 1 02

A1 A2 3 X1A3 3 Y A4 3 V
B g 5 A0 3 P 3 e 3 e ð5:17Þ
X 5 SG1 3 Psep1
Y 5 SG2 3 Pse2
V 5 STO 3 Tr
where
A0 5 404; A1 52 0:77; A2 5 3:3E 2 05;
A3 52 7:5E 2 05; and A4 5 0:002

The results are summarized in Table 5.18. The calculated dew point is
highlighted in bold.
Figs. 5.11 5.14 show the calculation results against pressure.