hole diameter enlargement rate 井径扩大率
hole enlargement ratio 井径扩大率
ductile hole enlargement 延性扩孔穿甲
hole enlargement technology 扩孔技术
ratio of hole enlargement 井径扩大率
micro-step hole enlargement 微台阶扩孔
No allowance for volume of hole enlargement.
不包括井眼扩大的泥浆体积。
Hole enlargement through the Tertiary system and the Carboniferous system in test Wells are less than 6%, therefore, got a successful completion logging and running casing strings.
试验井三叠系、石炭系平均井径扩大率小于6%，完井电测及下套管固井等作业顺利。
Based on the theory of elasticity and molar-Coulomb strength failure criterion, we proposed the prediction method for hole enlargement ratio in the condition of underbalanced drilling.
基于弹性力学理论及岩石摩尔-库仑强度破坏准则，提出了欠平衡钻井条件下井径扩大率的预测方法。
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