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1、SchlumbergerPrivate多底井技术交流会多底井定义WhatisaMultilateralThedefinitionofamultilateralwellis:SchlumbergerPrivate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AwellinwhichthereismorethanonehorizontalornearhorizontallateralwelldrilledfromasinglemainboreandconnectedbacktothesamemainboreFirstMultilate
2、ral-世界第一口多底井1953年,俄罗斯FirstMultilateralwellwasdrilledinRussiain1953SchlumbergerPrivate•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TheobjectiveoftheTAMLconsortiumistopromotetheefficientSchlu
3、mbergerPrivatedevelopmentandutilizationofmultilateralswithintheinternationalpetroleumindustry,throughdialogue;informationandtechnologyexchange;andcollectivesponsorship部分组织成员SomeTAMLMembersAramco,BakerHughes,BPAmoco,ChevronTexaco,ExxonMobil,NorskHydro,Phillips,Saga,Schlumberg
4、er,Shell,Smith,SperrySun,Statoil,TIW,Total,Weatherford,WellServiceTechnologyTAML-高级多底井技术多底井分级介绍TAML(TechnologyAdvancementMultiLateral)SchlumbergerPrivateTAML分级定义TAMLLevel1Definition-一级OpenHoleMainboreandLaterals•裸眼-OpenHoleSchlumbergerPrivate•已完成数以千计的此类井-Thousandsofwellscomp
5、leted•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-ProductioncontrollimitedTAMLLevel2Definition-二级CementedMainboreandOpenholeLateral主井眼固井,分枝裸眼•无困难再入主井眼-FullmainboreaccessSchlumbergerPrivate•连接处无机械支持-NosupportatJunction•可能再入分枝-Lateralreentrypo
6、tential•稳固的地层-Consolidatedformations•可下衬管,但无法回接到主井眼-Linerisoptional,butcannotbeattachedtothemainboreTAMLLevel3Definition-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-JunctionmechanicallysupportedSchlumbergerPrivate•侧向衬管悬挂到主井眼,但无固井-Lateralline
7、ranchoredtomainborewithalinerhangerbutnotcemented•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-NohydraulicintegrityatthejunctionTAMLLevel4Definition-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-MechanicallysupportedjunctionSchl
8、umbergerPrivate•连接处固井-cementedatthejunction•连接处无压力密封-Nohydraulicintegrityat