Reservoir Evaluation and Development ›› 2018, Vol. 8 ›› Issue (3): 12-17.
• Reservoir Evaluation • Previous Articles Next Articles
Sun Lei1,Zhou Fangfang1,Xia Jing2,Pan Yi1,Luo Qiang3,Leng Jie1
Received:
2017-06-01
Online:
2018-06-26
Published:
2018-12-07
CLC Number:
Sun Lei,Zhou Fangfang,Xia Jing,Pan Yi,Luo Qiang,Leng Jie. An improved dew point pressure model for condensate gas based on genetic algorithm[J].Reservoir Evaluation and Development, 2018, 8(3): 12-17.
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Table 1
Generalized parameters in the dew point pressure correlation proposed by Nemeth and Kennedy"
1 | -2.062 305 4×10-2 | 7 | 7.429 995 1×10-5 | |
---|---|---|---|---|
2 | 6.625 972 8×10-3 | 8 | -0.113 811 95 | |
3 | -4.467 055 9×10-3 | 9 | 6.247 649 7×10-4 | |
4 | -1.880 702 3×10-3 | 10 | -1.071 686 6×10-3 | |
5 | 3.267 371 4×10-3 | 11 | 10.746 622 | |
6 | -3.645 327 7×10-3 | 12 | 6.895×10-3 |
Table 2
Generalized parameters in the dew point pressure correlation proposed by Chu Jizheng"
1 | 254.74 | 10 | -0.474 54 | |
---|---|---|---|---|
2 | -9.954 1 | 11 | 5.382 7 | |
3 | 0.409 58 | 12 | -0.224 53 | |
4 | -0.031 323 | 13 | 0.084 961 | |
5 | -0.891 23 | 14 | 0.000 687 28 | |
6 | 0.054 063 | 15 | -0.000 882 31 | |
7 | -0.327 52 | 16 | 0.001 663 5 | |
8 | -0.017 871 | 17 | 0.005 361 1 | |
9 | 7.204 1 | 18 | 0.005 196 4 |
Table 4
Generalized parameters in the dew point pressure correlation proposed by Elsharkawy"
0 | 4 268.85 | 11 | 40 660.36 | |
---|---|---|---|---|
1 | 0.094 056 | 12 | 205.26 | |
2 | -7 157.87 | 13 | -7 260.32 | |
3 | -4 540.58 | 14 | -352.413 | |
4 | -4 663.55 | 15 | -114.519 | |
5 | -1 357.56 | 16 | 8.133 | |
6 | -7 776.1 | 17 | 94.916 | |
7 | -9 967.99 | 18 | 238.252 | |
8 | -4 257.1 | 19 | 0.006 897 | |
9 | -1 417.1 | 20 | -459.67 | |
10 | 691.529 8 |
Table 7
Properties of gas condensate reservoir fluids"
井号 | T/ K | % | % | (g·mol-1) | R/(m3·m-3) | 露点压力/MPa | 露点压力计算值/MPa | 绝对 误差 | |||
---|---|---|---|---|---|---|---|---|---|---|---|
DH12 | 389.15 | 2.53 | 74.95 | 15.54 | 6.98 | 197 | 0.823 | 1 030 | 50.47 | 49.19 | -1.280 |
YH2 | 412.05 | 4.64 | 75.1 | 14.01 | 6.25 | 228 | 0.844 | 1 002 | 47.67 | 47.68 | 0.011 |
JL109 | 376.95 | 5.65 | 84.32 | 6.38 | 3.65 | 159 | 0.795 | 2 737 | 45.57 | 46.72 | 1.146 |
JL102 | 375.15 | 6.72 | 81.99 | 7.45 | 3.84 | 152 | 0.802 | 3 250 | 45.28 | 45.48 | 0.199 |
YM7 | 378.15 | 2.13 | 86.62 | 8.86 | 2.39 | 144 | 0.783 | 4 146 | 45.08 | 44.81 | -0.272 |
LN59 | 399.85 | 3.54 | 94.22 | 1.17 | 1.07 | 166 | 0.801 | 11 865 | 44.69 | 44.34 | -0.349 |
YH3 | 410.15 | 4.85 | 70.38 | 14.93 | 9.84 | 189 | 0.827 | 847.8 | 44.13 | 45.75 | 1.620 |
LN58 | 379.85 | 6.36 | 79.64 | 8.09 | 5.91 | 142 | 0.782 | 1 581 | 43.9 | 44.89 | 0.986 |
YM23 | 377.55 | 1.99 | 88.2 | 8.32 | 1.49 | 172 | 0.805 | 7 069 | 43.41 | 47.78 | 4.374 |
TZ402 | 377.15 | 6.91 | 74.09 | 13.4 | 5.6 | 154 | 0.804 | 1 256 | 43.33 | 44.51 | 1.181 |
TZ421 | 376.15 | 12.85 | 65.59 | 15.14 | 6.42 | 138 | 0.762 | 1 248 | 42.14 | 41.29 | -0.847 |
TZ101 | 384.85 | 10.89 | 84.26 | 3.59 | 1.26 | 145 | 0.805 | 10 568 | 40.87 | 41.14 | 0.271 |
TZ1 | 392.15 | 14.69 | 71.6 | 9.76 | 3.95 | 143 | 0.783 | 2 383 | 40.77 | 37.90 | -2.865 |
TZ6 | 387.05 | 8.35 | 86.33 | 4.31 | 1.01 | 136 | 0.804 | 13 142 | 39.83 | 40.42 | 0.592 |
TZ422 | 377.55 | 10.96 | 74.95 | 11.68 | 2.41 | 134 | 0.775 | 2 800 | 37.93 | 39.39 | 1.457 |
T1 | 410.15 | 1.89 | 71.87 | 18.82 | 7.42 | 152 | 0.79 | 1 298 | 36.85 | 40.01 | 3.158 |
TZ1 | 390.15 | 14.96 | 74.56 | 7.81 | 2.67 | 131 | 0.772 | 3 692 | 35.77 | 36.69 | 0.925 |
Table 9
Comparison of predicted results for dew point pressure of gas condensate reservoir"
井号 | 露点 压力/MPa | 露点压力 计算值 /MPa | 相对误差的绝对值 | ||||||||
---|---|---|---|---|---|---|---|---|---|---|---|
1 | 418.15 | 4.67 | 63.70 | 21.52 | 10.10 | 147 | 0.792 | 530 | 38.19 | 38.26 | 0.19 |
2 | 376.95 | 4.99 | 82.67 | 7.72 | 4.62 | 139 | 0.782 | 1865 | 46.28 | 44.96 | 2.86 |
3 | 410.75 | 3.36 | 95.57 | 0.77 | 0.30 | 205 | 0.847 | 31 426 | 46.95 | 47.08 | 0.29 |
4 | 378.45 | 5.16 | 84.96 | 6.50 | 3.38 | 143 | 0.787 | 3 004 | 44.33 | 44.67 | 0.77 |
5 | 405.65 | 3.90 | 94.75 | 1.14 | 0.21 | 174 | 0.821 | 45 001 | 43.99 | 44.87 | 2.00 |
6 | 396.95 | 8.50 | 86.86 | 4.08 | 0.56 | 124 | 0.759 | 37 177 | 39.51 | 38.43 | 2.72 |
7 | 378.15 | 15.48 | 72.94 | 8.67 | 2.91 | 124 | 0.759 | 2 983 | 36.93 | 37.89 | 2.60 |
8 | 389.95 | 9.58 | 85.43 | 3.91 | 1.08 | 136 | 0.777 | 10 577 | 39.34 | 39.89 | 1.40 |
9 | 419.05 | 9.54 | 70.39 | 9.15 | 10.93 | 144 | 0.788 | 717 | 38.75 | 39.87 | 2.89 |
10 | 423.77 | 2.50 | 77.34 | 9.04 | 11.11 | 153 | 0.799 | 974 | 41.64 | 42.55 | 2.18 |
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