中文摘要：

以Y341-114型压缩式封隔器为研究对象，基于Mooney-Rivlin橡胶本构模型，对封隔器胶筒的非线性接触力学行为进行有限元模拟，分析了胶筒轴向压缩距及胶筒与套管壁间接触应力分布与坐封载荷之间的关系。仿真结果表明，封隔器胶筒与套管壁间的接触应力和胶筒轴向压缩距均随坐封载荷的增大而增大；坐封载荷较高时，上胶筒与套管之间的接触应力最大，起主要密封作用的是上胶筒；坐封载荷较低时，中胶筒与套管之间的接触应力最大，起主要密封作用的是中胶筒。

英文摘要：

Based on Mooney-Rivlin constitutive model of rubber, the nonlinear mechanical behaviors of contact between rubber sleeve and casing pipe of Y341-114 compressive packer were simulated by fi- nite element method, and the relationships of axial compressive distance and distribution of contact stress with setting loads were determined. Simulation results show that both the contact stress be- tween rubber sleeve and casing pipe and the axial compressive distance of rubber sleeve increase with the increase of setting loads. Under high setting loads, the maximum contact stress is generated between the upper rubber sleeve and the casing pipe, and the main sealing effect comes from the upper rubber sleeve. However, under low setting loads, sealing is mostly from the middle rubber sleeve.