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ni yan duan tao guan wai zai de you xian yuan ji suan fa
Author(s): 
Pages: 82-83,87
Year: Issue:  2
Journal: PETROLEUM GEOLOGY AND ENGINEERING

Keyword:  泥岩段套管外载有限元计算蠕变本构方程;
Abstract: 通过对泥岩蠕变本构方程的分析,利用Ansys有限元计算软件,对非均匀地应力作用下泥岩蠕变产生的套管外栽进行了分析计算.举例说明了非均匀地应力作用下泥岩的蠕变将对套管产生一个大于地应力的非均匀外挤力,对套管将产生极大的危害.这一结论对泥岩段的套管设计具有重要的指导意义.
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