钻井力学 drilling mechanics
井底压力 bottom hole pressure ; BHP ; bottom hole wellbore pressure ; grinding bottom hole pressure
关井压力 [油气] shut-in pressure ; closed-in pressure ; closed pressure ; shut-in well pressure
井中重力仪 [地物] borehole gravimeter ; BHGM
平衡压力钻井 balanced drilling ; balance pressure drilling
井底压力计 bottom hole pressure gauge ; bottom-hole pressure device ; bottom hole pressure indicator ; bottom hole pressure bomb
井下压力计 subsurface pressure gauge ; downhole pressure gauge ; bottom hole pressure gauge
深井压力计 [地质] deep well pressure gauge
矿井阻力 mine resistance
三井说：“iPhone 3gs只有一个不能调焦距的镜头，这让我把注意力完全放在构图和最佳拍摄时机上。”
"The iPhone has a single-focus lens with no zoom, and this simplicity keeps me devoted to only composition and the perfect photo opp," Mitsui says.
相信别人应该要擦亮双眼井有明确的判断力。
Belief in people should he accomplished with open eyes and clarity of judgment.
分析了钻杆接头对水平井段钻柱屈曲临界力和弯曲应力的影响，提出了计算钻柱正弦屈曲临界力的新方法。
The effects of the connectors on the critical buckling load and the bending stress of pipes in horizontal section are analyzed.
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