用350吨卡瓦式吊卡下套管。
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。
It is very important for the designs of well casing strings, especially for those of deep Wells and super deep Wells to analyze the load bearing capacity of tub es inside slips.
然而卡瓦和套管间形成非常复杂的接触压力，从理论上直接研究非常困难。
However the contact stress between slips and casing is very complex, it is extremely difficult to study directly in theory.
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。
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。
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。
It is very important for the designs of well casing strings, especially for those of deep Wells and super deep Wells to analyze the load bearing capacity of tubes inside slips.
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。
It is very important for the designs of well casing strings, especially for those of deep Wells and super deep Wells to analyze the load bearing capacity of tubes inside slips.
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