... 常规注水泥法 conventional primary cementing 常规钻井 conventional drilling 常规钻井液体系 conventional drilling fluid system ...
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In conventional drilling, spiral centralizer can rotate at a high speed along with drill string. When drilling fluid passes, the strong swirl from the centralizer affects inevitably carrying-cuttings lifting of drilling fluid.
在常规钻井中,螺旋扶正器随钻柱高速旋转,钻井液通过螺旋扶正器时,螺旋扶正器产生的强烈旋流必然会对钻井液携带岩屑举升能力产生不同程度的影响。
参考来源 - 常规钻井螺旋扶正器携岩举升数值计算研究·2,447,543篇论文数据，部分数据来源于NoteExpress
The difference of well control between UBD and conventional drilling;
欠平衡钻井井控与常规钻井井控差异及施工原则；
Air drilling is one of the effective means to increase drilling ROP, able to reach an ROP several times that of a conventional drilling.
采用空气钻井技术提高钻井机械钻速非常有效，钻速是常规钻井机械的数倍。
The rate of penetration of the negative pulse jet assisted drilling can increase from 0.7 to 3.0 in in-house simulation drilling compared to conventional drilling.
与常规钻井相比，室内模拟钻井试验条件下负压脉冲射流辅助钻井可以使钻速提高0.7-3.0倍。
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