bottom hole pressure measurement
... 目前井底压力 current bottom-hole pressure 井底压力测量 bottom hole pressure measurement 可用井底压力 ADP ...
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随钻井底环空压力测量 APWD
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随着井深增加，水温对水头高度的影响越来越大，需要采用下井仪器测量井底压力。
The influence of water temperature on water head height becomes bigger as the well depth increases. The pressure at the well bottom has to be measured by instruments in the well.
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