封隔器设计说明书

Y241-114封隔器设计摘要：本文研究的封隔器是油气井作业中使用广泛的一种井下工具，其作用是在油井深度方向实现分层作业。封隔器上的卡瓦锚定后起到支撑封隔器、锁定胶皮筒的作用，其性能的好坏直接影响到油井的产量和生产安全。随着油气田开采的深入，地层情况越来越复杂，分层作业越来越普遍，对封隔器的使用要求也越来越高，封隔器系统失效的情况时有发生，给生产造成损失。本文概述了油田常用的封隔器的类型、参数、命名及其工作原理；讨论了目前封隔器所用的胶筒的发展现状；分析了卡瓦对套管的损坏机理，讨论了卡瓦齿形对其受力的影响及对套管损坏的影响；分析了Y241-114封隔器的工作原理以及结构特征并对各重要零部件进行强度校核，进而完成对Y241-114封隔器的设计，得出结论。Y241-114型封隔器主要用于分层注水中，该型封隔器中设计的内锁紧机构，实现了机构的重复坐封，提高了承压能力，采用的单向卡瓦结构，对注水工艺管柱进行扶正和锚定，提高了传统的无卡瓦封隔器的承压能力与解封力。同时还采用新型胶筒材料，能使密封元件更好耐高温、高压。因此该封隔器具有承压能力高，使用寿命长，密封效果好，能够满足高压分注工艺要求。关键词：封隔器；高压；注水；设计TheDesignofPackerofY241-114formAbstract:Packerofthisstudyiswidelyusedinoilandgaswellsoperatingadownholetool,itsroleistorealizethedepthdirectioninthewellstratifiedoperation.Slipsonthepackerpackersupportaftertheplay,locktheroleofrubbertube,theperformancehasadirectimpactonoilproductionandproductionsafety.Withthedeepeningexploitationofoilandgasfields,stratigraphicsituationmorecomplex,layeredworkmoreandmorecommon,theuseofpackerdemandmoreandmore,packersystemfailuresituationshaveoccurred,causingdamagetoproduction.Thisarticleoutlinesthecommonoilfieldpackertype,parameters,nameandtheworkingprinciple;discussthecurrentpackerconesusedinthedevelopmentofthestatusquo;oftheslipofthecasingofthefailuremechanism,gearslipsdiscussedTheinfluenceofitsshapeandtheinfluenceofcasingdamageoftheY241-114packerworksandstructuralcharacteristicsandstrengthcheckofallmajorcomponents,andthencompletetheY241-114packerDesign,drawaconclusion.Y241-114packerismainlyusedinwaterinjection.Ithasthelockingmechanism,andmakestherealizationoftherepeatedclosures.Itcanbearshighpressure.Thepackerusingaone-wayslipstructuremakesthewaterinjectionstringcentralizedandanchored,anditalsoenhancesthetraditionalnon-slippackercapacityandthepressureofbeinglifted.Thepackeralsoadoptesthenewrubbermaterialtosealbetterunderhighpressureandhightemperature.Soitcanbebearshigh-pressure,andhaslongservicelife,sealseffectly,andmetthehigh-pressureinjection.Keywords:packer;hypertension;waterinjection;design目录1绪论..............................................................................................错误!未定义书签。1.1前言.......................................................................................错误!未定义书签。1.2封隔器的发展.......................................................................错误!未定义书签。1.3封隔器的应用.......................................................................错误!未定义书签。1.3.1封隔器基本用途........................................................................................21.3.2封隔器选用依据........................................................................................21.4封隔器的结构.......................................................................................................31.4.1密封部分....................................................................................................31.4.2锚定部分....................................................................................................31.4.3扶正部分....................................................................................................31.4.4坐封部分....................................................................................................41.4.5锁紧部分....................................................................................................41.4.6解封部分....................................................................................................41.5封隔器的类型.......................................................................................................41.5.1封隔器的分类.............................................................................................41.5.2封隔器型号编制.........................................................................................41.6常用封隔器的工作原理........................................................................................62Y241-114封隔器的设计..............................................................................................102.1总体方案设计......................................................................................................102.2结构设计..............................................................................................................102.3工作原理..............................................................................................................112.3.1坐卡、坐封过程......................................................................................112.3.2解卡、解封过程......................................................................................112.4密封元件的设计....................................................................错误!未定义书签。2.4.1合理形状和尺寸的确定..........................................................................122.4.2密封元件材质的选用................................................错误!未定义书签。2.5卡瓦部分的设计....................................................................错误!未定义书签。2.5.1普通卡瓦封隔器对套管的损坏..................................错误!未定义书签。2.5.2普通卡瓦的受力分析..............................................................................182.5.3卡瓦的设计.......................................................................................