【摘要】 处于疏松砂岩地层中的套管由于地层的坍塌、掏空等影响,套管承受非均匀的外挤载荷,容易使套管变形损坏。文章利用ANSYS有限元软件,对承受单向外挤载荷套管的承载能力及其变形损坏进行仿真,为防治套管的损坏提供依据。更多还原

【Abstract】 Casings in the loose sandstone layer usually bear uneven pressure because of the collapse and cavern of the layer. This easily leads to casing damage. In this paper the sustainability and deformation of one-way pressure on casing are analyzed and imitated by using the finite element software ANSYS. The result provides the reasonable model for prevention and cure of casing damage.更多还原