It has a practical meaning for the strength design and combination usage of drill string, casing and tubing under different technological conditions.
对处于不同工艺条件下的钻柱、套管、油管的强度设计和组合使用等均有实际意义。
In conventional casing string design, only casing strength is considered.
传统的套管柱设计中，套管只进行强度设计。
In conventional casing string design, only casing strength is considered.
传统的套管柱设计中，套管只进行强度设计。
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