关 键 词： 油井套管；非均匀外载；强度设计；实验 [gap=1158]Key words: oil-well casing; nonuniform load; strength characteristics; strength test
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With the deterioration of oil extracting condition and the increasingly high demand of the performance of the oil well tube, the development of high performance oil well casing has a vital practical significance.
随着采油条件越来越恶劣，对油井管的要求也越来越高，研制高性能油井套管有着重要的实际意义。
参考来源 - 高性能油井钢管裂纹实验研究·2,447,543篇论文数据，部分数据来源于NoteExpress
油井套管缩径连续扩胀整形技术是一项新技术。
Shaping reduced casing by continuous expansion is a new technique.
用有限元方法分析了围岩蠕变引起的油井套管变形。
The deformation of oil well casing by creep of surrounding rocks is analysed with finite element methods.
实际上，大多数油井套管的损坏是由非均匀载荷引起的。
In fact, most of casings are collapsed by non-uniform loading.
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