石油英语|能源动力行业英语第1130页 ... subsurfacepump井下泵 subsurfacereflectionpoint地下反射点 subsurfacereservoir地下储层；地下水库 ...
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rodlless subsurface pump 抽油杆提升器
gas-activated rodless subsurface pump 气动井下无杆泵
special subsurface pump 特种抽油泵
subsurface pump plunger 抽油泵柱塞
The equation for calculating the fullness coefficient of a subsurface pump is derived.
推导出计算抽油泵充满系数的公式。
During oil recovery by rod pump, owing to the elastic stretching and shrinking of the tubing string, the stroke loss of the subsurface pump reaches 10%.
在有杆泵抽油过程中，因油管弹性伸缩，抽油泵冲程损失达10%以上。
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