The field application of improved technique showed that the PCP lifting technique is effective in shallow directional wells.
现场应用表明，浅层定向井的螺杆泵举升工艺是可行的。
The field application of improved technique showed that the PCP lifting technique is effective in shallow directional wells.
现场应用表明，浅层定向井的螺杆泵举升工艺是可行的。
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