油水井带压作业装置中环形密封胶芯的设计  

Design of Annular Rubber Seal for the Oil-Water Well Device Under Pressure Operation

作　　者：崔斌[1,2] 吴应湘[1] 许晶禹[1] 

机构地区：[1]中国科学院力学研究所,北京100190 [2]辽河石油勘探局,辽宁盘锦124107

出　　处：《石油化工高等学校学报》2009年第3期79-82,共4页Journal of Petrochemical Universities

基　　金：中国科学院十一五知识创新工程方向性项目(KJCX2-YW-L02);国家自然科学基金资助(10572143)

摘　　要：采用动态密封理论,针对带压作业系统中的橡胶密封胶芯问题,利用非线性有限元计算了在井压和密封外压作用下的变形和应力分布特征,并通过对密封胶芯材料进行了强度和疲劳实验研究,获得了胶芯材料破坏的原因,进而根据计算和实验研究结果,进一步提出了在胶芯内增加钢筋以减小最大剪切力的改进意见,同时进行了理论校核,并以此为基础设计了新型的密封胶芯,从而解决了带压作业装置高压动密封的难题。The rubber seal issue under operating system has been studied by the theory of dynamic sealing. The deformation and stress distribution of rubber material were calculated under the well in- pressure and sealing out-- pressure using the non-- linear finite element. Through the experimental study of the rubber strength and fatigue, the intensity limit and the fatigue life were obtained. According to the study results, a new type of sealing equipment was designed by adding the reinforcing steel bar into rubber core to reduce the maximum shear stress, so as to solve the problems of dynamic seal under hyperbaric pressure.

关 键 词：油水井 带压作业 动态密封 

分 类 号：TE24[石油与天然气工程—油气井工程]