Reservoir Evaluation and Development ›› 2019, Vol. 9 ›› Issue (4): 83-88.
• Non-conventional Reservoir • Previous Articles
YUAN Hang,GU Hongtao,LI Jiaxin
Received:
2019-03-18
Online:
2019-08-26
Published:
2019-08-28
CLC Number:
YUAN Hang,GU Hongtao,LI Jiaxin. Research and field application of downhole throttling technology for shale gas wells in south block of Pingqiao area[J].Reservoir Evaluation and Development, 2019, 9(4): 83-88.
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Table 1
Comparison between theoretical and actual liquid holding rates of well JY200-3HF"
井深/m | 压力/MPa | 温度/ ℃ | 理论携液率,% | 实际携液率,% | 产气量/ m3 | 产液量/104m3 |
---|---|---|---|---|---|---|
0 | 25.61 | 35.00 | 0.030 | 0.007 2 | 92 090 | 10.42 |
294.93 | 26.19 | 40.72 | 0.045 | 0.007 3 | ||
579.82 | 26.82 | 46.58 | 0.062 | 0.007 8 | ||
881.83 | 27.49 | 53.43 | 0.087 | 0.008 2 | ||
1 183.96 | 28.15 | 60.68 | 0.099 | 0.008 7 | ||
1 466.85 | 28.82 | 67.69 | 0.104 | 0.009 1 | ||
1 764.18 | 29.43 | 74.94 | 0.115 | 0.009 8 | ||
2 010.31 | 30.09 | 79.83 | 0.123 | 0.011 2 | ||
2 050.70 | 30.22 | 80.68 | 0.127 | 0.013 0 | ||
2 104.80 | 30.38 | 81.74 | 0.129 | 0.014 7 |
Table 2
Pressure changes before and after downhole throttling of South block in Pingqiao"
井号 | 节流前油压/ MPa | 节流后油压/ MPa | 节流前后油压差/MPa | |||||
---|---|---|---|---|---|---|---|---|
最大 | 平均 | 最大 | 平均 | 最大 | 平均 | |||
JY194-1 | 29 | 25 | 4.6 | 4.4 | 24.2 | 20.6 | ||
JY194-2 | 30 | 25 | 4.7 | 4.35 | 25.3 | 20.65 | ||
JY194-3 | 31 | 25.2 | 4.6 | 4.26 | 26.4 | 20.94 | ||
JY195-1 | 28.5 | 24 | 4.8 | 4.28 | 23.7 | 19.72 | ||
JY195-2 | 29 | 24.6 | 4.4 | 4.17 | 24.6 | 20.43 | ||
平均 | 29.5 | 24.76 | 4.62 | 4.292 | 25.21 | 20.47 |
Table 3
Comparison of temperature of hydrate formation before and after downhole throttling of South block in Pingqiao(The temperature in winter is calculated by 0℃)"
井号 | 试验前 | 试验后 | |||
---|---|---|---|---|---|
平均油压/ MPa | 水合物形成 温度/℃ | 平均油压/ MPa | 水合物形成 温度/℃ | ||
JY194-1 | 27 | 21.62 | 4.3 | 8.63 | |
JY194-2 | 28 | 22.01 | 4.26 | 8.55 | |
JY194-3 | 26 | 20.97 | 4.32 | 8.74 | |
JY195-1 | 27 | 21.62 | 4.18 | 8.32 | |
JY195-2 | 26 | 20.97 | 4.22 | 8.47 | |
平均 | 26.8 | 21.44 | 4.26 | 8.54 |
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