Petroleum Reservoir Evaluation and Development ›› 2023, Vol. 13 ›› Issue (4): 416-423.doi: 10.13809/j.cnki.cn32-1825/te.2023.04.002
• CBM • Previous Articles Next Articles
WU Zhuangkun(),ZHANG Honglu(
),CHI Yuxuan,YIN Zhonghua,ZHANG Zhuang
Received:
2023-01-30
Online:
2023-09-01
Published:
2023-08-26
CLC Number:
Zhuangkun WU,Honglu ZHANG,Yuxuan CHI, et al. Improvement and application of a novel drainage pump of deep coalbed methane wells in south Yanchuan[J]. Petroleum Reservoir Evaluation and Development, 2023, 13(4): 416-423.
Table 1
Minimum carrying flowrate of pulverized coal dust(or sand) with different particle sizes"
序号 | 砂子 | 煤粉 | |||||
---|---|---|---|---|---|---|---|
砂子颗粒直径/ mm | 砂子沉降速度/ (m/s) | 最小携砂流量/ (m3/d) | 煤粉颗粒直径/ mm | 煤粒沉降速度/ (m/s) | 最小携煤粉流量/ (m3/d) | ||
1 | 0.05 | 0.052 25 | 7.926 420 | 0.05 | 0.000 68 | 0.099 232 | |
2 | 0.07 | 0.064 41 | 8.639 787 | 0.07 | 0.001 34 | 0.594 401 | |
3 | 0.10 | 0.078 99 | 9.304 220 | 0.09 | 0.002 74 | 0.897 507 | |
4 | 0.11 | 0.082 95 | 10.878 720 | 0.11 | 0.003 94 | 1.571 598 | |
5 | 0.12 | 0.090 30 | 11.945 030 | 0.12 | 0.006 16 | 2.193 665 | |
6 | 0.23 | 0.196 00 | 11.222 720 | 0.13 | 0.010 90 | 2.581 323 | |
7 | 0.33 | 0.201 00 | 12.751 120 | 0.14 | 0.024 60 | 3.568 858 | |
8 | 0.41 | 0.310 20 | 13.987 320 | 0.19 | 0.033 50 | 4.860 030 |
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