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Submersible direct-drive progressing cavity pump rodless lifting technology
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HAO Zhongxian,ZHU Shijia,PEI Xiaohan,HUANG Peng,TONG Zheng,WANG Benyuan,LI Deyin
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Table 2 Economic comparison of ESPCP and pumping unit.
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| Unit | Power consumption | Lift tech-
nology | Investment (at setting
depth of 1 300 m)/
104 RMB | Type 12
Pumping unit | Installed power 30 kW,
Daily power consumption 200 kW·h | Rod
drive | 31.7 | | ESPCP | Installed power 12 kW,
Daily power consumption 134 kW·h | Submersible motor drive | 28.5 |
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