本文以整体套管串为研究对象，建立了整体套管串非线性力学模型。
This paper is on the research of whole casing string, and has built the entire casing string nonlinear mechanics model.
套管外水泥环的破坏是导致管外串槽、套管外腐蚀的原因之一。
Destruction of cement sheath outside casing is one of the causes for channeling and corrosion.
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。
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。
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.
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