桥塞中金属密封套筒的有限元分析与实验研究  

Finite Element Analysis and Experimental Study of the Metal Seal Sleeve in Bridge Plug

作　　者：尚晓峰[1] 金平[1] 王志坚[1] 陈岩[2] 

机构地区：[1]沈阳航空航天大学机电工程学院,辽宁沈阳110136 [2]中国科学院金属研究所,辽宁沈阳110016

出　　处：《机械设计与制造》2016年第7期209-212,共4页Machinery Design & Manufacture

基　　金：省院科技合作高新技术产业化专项资金(2015SYHZ0018)深井专用金属密封件研发及示范应用

摘　　要：针对目前深层开采石油导致的井下工况越来越恶劣的难题,为了替代原有的橡胶密封组件,设计了一种新颖的金属密封套筒结构。简要介绍了该密封工具的主要结构及密封原理。通过有限元方法,分析了密封组件在外层套管约束下的变形和受力情况,得出了套筒径向变形、接触应力和外加载荷之间的关系。根据所设计的套筒结构进行了坐封试验。实验结果表明外加载荷与下压位移的关系与仿真结果大致吻合,验证了模拟参数的准确性,初步验证了该结构的可行性。A new metal seal sleeve structure is designed in order to replace the original rubber seal structure because of the problem that the downhole condition becomes tough with the substantial increase of oil explaithtion depth. The main structure of the sleeve and the sealing principle are introduced briefly. The deformation and stress of the seal assembly constrained by the outer casing are calculated by using finite element method. By using this method, the deformed shape of the sealing sleeve, the relationship between required applied load and suqCace contact stresses are determined, Setting test of the metal seal assembly in the casing is peoCormed based on the sleeve structure of design Test results show that a consistence？between the relationship of applied load and pushing displacement and the simulation results is obtained,verifying the exactness of the parameters used in simulation, That verifies the feasibility of this structure elementarily

关 键 词：金属对金属密封 桥塞 有限元分析 接触应力 下压位移 实验研究 

分 类 号：TH16[机械工程—机械制造及自动化] TE931[石油与天然气工程—石油机械设备]