其次，采用有限元方法，研究了非均匀地应力条件下蠕变地层中套管的载荷。
Secondly, due to the difficulty of the analytical method in treating non-uniform in-situ stresses, finite element method is used instead.
对套管的变形形态与地应力作用大小、应力范围之间的关系和非均匀地应力的求解进行了研究。
The relation between the deformation shape of casing and the areas and subjected to ground stress and the theory solution of non-uniform in-situ stress were analyzed.
对套管的变形形态与地应力作用大小、应力范围之间的关系和非均匀地应力的求解进行了研究。
The distributions of casing load with uniform and non-uniform in-situ stresses in creep formations are studied by analytical and numerical methods, respectively.
最后给出塔里木油田英买力地区第三系盐层在均匀和非均匀地应力条件下盐岩蠕变引起的套管岩压外载实例。
Finally, the examples of external load due to the salt creep in the tertiary of Yingmaili oil field have been performed under heterogeneous and homogeneous in-situ stresses.
在非均匀水平地应力条件下，无论地层为各向同性或各向异性，套管应力均呈现非均匀分布态势，其套管应力极值变化不大。
When the horizontal in-situ stress is non-uniform, the casing stress is non-uniform at all times not only in the isotropic formation but also the orthotropic ones.
在非均匀水平地应力条件下，无论地层为各向同性或各向异性，套管应力均呈现非均匀分布态势，其套管应力极值变化不大。
When the horizontal in-situ stress is non-uniform, the casing stress is non-uniform at all times not only in the isotropic formation but also the orthotropic ones.
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