Wear of casing and too large torque are problems which can't be ignored when drill deep and super deep well, horizontal well and deviated well.

套管磨损和扭矩过大是钻深井、超深井、水平井和大位移井时一个不容忽视的问题。

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Analysis on the load bearing capacity of tubes inside slips is very important for the design of well casing string, especially for that of deep well and super deep well.

在油井特别是深井和超深井的套管柱设计中，对卡瓦内悬挂管柱承载能力进行分析是十分重要的。

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Analysis on the load bearing capacity of tubes inside slips is very important for the design of well casing string, especially for that of deep well and super deep well.

分析卡瓦内悬挂管柱的承载能力，对油井特别是深井和超深井的套管柱设计十分重要。

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