斯伦贝谢水平分支井介绍1

SchlumbergerPrivate多底井技术交流会SchlumbergerPrivate多底井定义WhatisaMultilateralThedefinitionofamultilateralwellis:两条或两条以上水平或近水平井段钻由同一主井眼并回接到该主井眼AwellinwhichthereismorethanonehorizontalornearhorizontallateralwelldrilledfromasinglemainboreandconnectedbacktothesamemainboreSchlumbergerPrivateFirstMultilateral-世界第一口多底井1953年,俄罗斯FirstMultilateralwellwasdrilledinRussiain1953•从主井眼分出9个分枝暴露产油区域5.5倍产量增加17倍SchlumbergerPrivate高级多底井技术TechnologyAdvancementofMultiLaterals(TAML)高级多底井技术合作组织的目标是通过对话,信息和技术交流以及共同倡议来推动该技术在石油工业的有效发展和利用TheobjectiveoftheTAMLconsortiumistopromotetheefficientdevelopmentandutilizationofmultilateralswithintheinternationalpetroleumindustry,throughdialogue;informationandtechnologyexchange;andcollectivesponsorship部分组织成员SomeTAMLMembersAramco,BakerHughes,BPAmoco,ChevronTexaco,ExxonMobil,NorskHydro,Phillips,Saga,Schlumberger,Shell,Smith,SperrySun,Statoil,TIW,Total,Weatherford,WellServiceTechnologyTAML-高级多底井技术SchlumbergerPrivate多底井分级介绍TAML(TechnologyAdvancementMultiLateral)SchlumbergerPrivateTAML分级定义TAMLLevel1Definition-一级OpenHoleMainboreandLaterals裸眼-OpenHole已完成数以千计的此类井-Thousandsofwellscompleted稳固的地层-Consolidatedformations简便易行-Simple重新进入分枝受限-Lateralaccesslimited产油控制受限-ProductioncontrollimitedSchlumbergerPrivateTAMLLevel2Definition-二级CementedMainboreandOpenholeLateral主井眼固井，分枝裸眼无困难再入主井眼-Fullmainboreaccess连接处无机械支持-NosupportatJunction可能再入分枝-Lateralreentrypotential稳固的地层-Consolidatedformations可下衬管,但无法回接到主井眼-Linerisoptional,butcannotbeattachedtothemainboreSchlumbergerPrivateTAMLLevel3Definition-三级CasedHoleMainbore,MechanicallyConnectedLateralLiner主井眼固井，分枝与主井眼机械连接连接处机械支持-Junctionmechanicallysupported侧向衬管悬挂到主井眼,但无固井-Laterallineranchoredtomainborewithalinerhangerbutnotcemented重进入主井眼与分枝皆可能-Mainboreandlateralreentryaccess稳固的地层-Consolidatedformations连接处无水力密封-NohydraulicintegrityatthejunctionSchlumbergerPrivateTAMLLevel4Definition-四级Mainbore&LateralCased&Cemented主井眼与分枝皆有固井与套管连接处有机械支持-Mechanicallysupportedjunction连接处固井-cementedatthejunction连接处无压力密封-Nohydraulicintegrityatthejunction重进入主井眼与分枝皆可能-Mainboreandlateralreentryaccess稳固与松散的地层皆可-ConsolidatedorunconsolidatedformationsSchlumbergerPrivateTAMLLevel5Definition-五级PressureIntegrityattheJunction连接处有压力密封连接处有机械支持-Mechanicallysupportedjunction通过封隔器取得压力密封-Pressureintegrityachievedbythecompletion重进入主井眼与分枝皆可能-Mainboreandlateralreentryaccess稳固与松散的地层皆可-Consolidatedorunconsolidatedformations水泥不作为密封介质-Cementisnotaseal难以实现-DifficulttodeploySchlumbergerPrivateTAMLLevel6Definition-六级PressureIntegrityattheJunction连接处有压力密封通过套管取得压力密封-Pressureintegrityachievedwiththecasing通过封隔器取得压力密封-Pressureintegrityachievedbythecompletion水泥不作为密封介质-Cementisnotaseal重进入主井眼与分枝皆可能-Mainboreandlateralreentryaccess稳固与松散的地层皆可-ConsolidatedorunconsolidatedformationsSchlumbergerPrivateSchlumbergerPrivate斯伦贝谢多底井发展过程1995:再入和促进生产钻井小组成立ReentryAndProductionImprovementDrilling(RAPID*)groupestablished1996:多底井工程小组成立Multilateralengineeringteamformed六级系统(RapidSeal*)第一次实验室测试FirstlabtestsofLevel-6system(RapidSeal*)9-5/8”二级系统(RapidAccess*)测试9-5/8”Level-2(RapidAccess*)systemtested1997:7”RapidAccess系统测试7”RapidAccesssystemtestedSchlumbergerPrivate1998:购买CamcoPurchaseofCamco第一次商业安装RapidAccessFirstcommercialRapidAccessinstallation7“三级(RapidConnect*)系统测试7”Level-3(RapidConnect*)systemtestedRapidSeal可行性研究完成RapidSealfeasibilitystudycompleted1999:高级完井小组成立AdvancedCompletionGroupformed2000:购买SecureOilToolsPurchaseofSecureOilTools2001:购买SensorHighway-DTSPurchaseofSensorHighway-DTSSchlumbergerPrivateRapidAccess二级连接RapidAccessLevel2Junction坚实地层,适合再入井StructurallysoundformationsContingencyforfuturere-entry套管和导向短接连接结构简单,价格便宜;侧向井眼裸眼完井,提供外径5“套管接箍的短接CasingjointwithorientingnippleSimpleandinexpensiveProvidespermanentdatumFullboreID,CasingcollarOD5nippleprofilesavailable适用Application特点FeaturesSchlumbergerPrivate下分度套管接箍RunningtheIndexingCasingCoupling(ICC)钻到设计深度Drilltodepth按照标准程序下连接着ICC的套管到设计深度RunthecasingwithICCtodepthasperstandardproceduresSchlumbergerPrivate注水泥固ICCCementingtheICC按照标准操作注水泥固套管;不需要调节套管的方位Cementthecasingasperstandardoperations;noorientationisneededonthecasingSchlumbergerPrivate清洗ICCCleaningtheICC可清洗ICC;可用一个喷射接头来清洗ICC中的水泥;ICC表面涂层可以防止水泥粘结TheICCcanthenbecleanedifdesired;AjettingsubisusedtocleananycementthatmightbeintheICC;ProprietarycoatinghelpstopreventcementfromstickingtotheprofilesoftheICCSchlumbergerPrivateICC定位DeterminingtheOrientation需用超声摄像工具或者SLIM-1MWD勘测来确定ICC的方位TodeterminetheorientationoftheICCanUltraSonicImagining(USI)tooloraSurveywithaSLIM-1MWDshouldberunSchlumbergerPrivate选择性联顶仪(SLT)SelectiveLandingTool(SLT)SchlumbergerPrivate下磨铣组合RuntheMillingAssembly调节造斜器和SLT之间的角度AdjusttheanglebetweentheSelectiveLandingTool(SLT),andtheWhipstockCollar-gageS-290711InterfacemandrelS-290690Setscrew(3setscrews)3/4-10UNCLug(3pieces)S-290670IndexingringS-290679MandrelS-2906510°350°10°造斜器WhipstockSLT下磨铣组合,调整方位放置在ICCRunthemillingassembly,thensetandorientintheICCSchlumbergerPrivate磨铣侧孔MillingtheWindow在套管上磨铣出一侧孔Millthewindowinthecasing钻造一短的井眼CreateashortratholeSchlumbergerPrivate取出磨铣组合PulltheMillingAssembly在钻侧井眼前清除造斜器周围碎屑颗