【摘要】 通过有限元软件分析了非均载荷下特厚壁套管的壁厚与抗挤强度的关系,给出了两者的量化曲线,同时在考虑套管椭圆度的情况下对非均匀载荷下特厚壁套管的抗挤强度做了分析。特厚壁套管在非均载荷下的抗挤强度明显增强,有较好的发展前景。更多还原

【Abstract】 It analyzes the relationship between the thickness of extra-heavy wall casing and its collapsing strength under non-uniform loads by finite element analysis software and gets the quantify curves,meanwhile it analyzes the collapsing strength of extra-heavy wall casing in considering its ovality under nonuniform loads.The collapsing strength of extra-heavy wall casing was markedly improved under nonuniform loads,therefore it has better prospects for development.更多还原