钟功祥，钟升级，程柯文.压缩式胶筒结构优化及裸眼密封性能分析[J].机械科学与技术，2023，42（8）：1261-1269压缩式胶筒结构优化及裸眼密封性能分析钟功祥，钟升级，程柯文（西南石油大学石油天然气装备教育部重点实验室，成都610500）摘要：压缩式封隔器广泛用于油田分层开采工艺，其胶筒的坐封通过高压流体作用在活塞上压缩胶筒或管柱来实现。现场作业发现：压缩式胶筒离载荷端较远，且大多采用单向加载，导致坐封不完全，接触应力与密封性能系数较低。针对上述问题，基于Mooney-Rivlin超弹模型、胶管变形及接触非线性理论，建立压缩式胶筒组有限元计算模型,从内衬套和防肩突结构开展单因素分析，并对其裸眼密封性能进行研究，结果表明：三角形内衬套能有效提高胶筒中部接触应力；金属圆环防突结构能提高胶筒密封性能系数；与常规压缩式封隔器相比，优化后的压缩式封隔器密封性能显著提高；裸眼井壁的不规则程度在一定范围内时，对封隔器的密封性能影响不大。关键词：压缩式封隔器；接触应力；肩突；密封性能；裸眼井壁中图分类号：TE931文献标志码：ADOI：10.13433/j.cnki.1003-8728.20220082文章编号：1003-8728（2023）08-1261-09StructurallyOptimizingRubberCylinderofCompressionPackerandAnalyzingItsOpen-eyeSealingPerformanceZHONGGongxiang，ZHONGShengji，CHENGKewen(TheMinistryofEducationKeyLaboratoryofPetroleumandNaturalGasEquipment,SouthwestPetroleumUniversity,Chengdu610500,China)Abstract：Acompressionpackeriswidelyusedinanoilfield’sstratifiedproductionprocesses,andthesettingofitsrubbercylinderisachievedbycompressingtherubbercylinderorpipestringthroughtheactionofhigh-pressurefluidonthepiston.Fieldoperationsfindthattherubbercylinderisfarfromtheloadendandthatthemajorityofitareloadedinonedirection,resultinginincompletesettingandlowcontactstressandsealingperformancecoefficient.Duetotheaboveproblems,basedontheMooney-Rivlinhyper-elasticmodel,thehosedeformationandcontactnonlineartheory,thefiniteelementmodelforcalculatingthecompressionrubbercylindergroupwasestablished,andthesinglefactoranalysiswascarriedoutfromtheinnerbushingandtheanti-shoulderstructure,andtheopen-holesealingwascarriedout.Theperformanceisstudied,andtheresultsshowthat:1）thetriangulari...
