combination casing string的意思|示意

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。

The multifinger caliper tool string to be used for casing inspection was centralized using the combination of a strong, optimally placed, spring loaded roller and stiff arm centralizers.

用于检查套管尺寸的多触点井径测量工具管串，采用结实的、安放位置经过优化的、弹簧加载的滚子及刚性臂扶正器进行居中。