UBD-PCWD 旋转防喷器 威德福旋转设备和技术介绍

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1、向在座的领导和同志们问好BestGreetingtoEveryBodyVarcoInternational,Inc.-Introduction-Version1,November1999.A.N.VDEProductTraining@SingaporeOct.15-19,20011.IntroductionofVarcoCompany公司介绍2.IntroductionofUBD欠平衡钻井介绍3.UBDEquipment(PCWD)Varco-Shaffer欠平衡设备4.CompetitionandComparison竞争与对比FoundedasAbeggandReinholdCo.in19

2、08=illemeurebeggeinholdmpanyFundedin19081908年成立INTERNATIONAL,INC.®TuboscopeINTERNATIONAL,INC.®VDEGroup®OtherGroups®VDEGROUPHoistingSystemRussiaChinaU.A.E.IndiaIndonesiaHollandSingaporeJapanAustraliaCanadaScotlandU.S.A.MexicoVenezuelaNorwayW.AfricaBrazilItalyEgyptCUSTOMERSUPPORTCENTERSWORLDWIDEVarcoI

3、nternational,Inc.-ProductLine-Version3.0,July1997.A.N.INTERNATIONAL,INC.Innovations-thePathtoProductivity®C.AfricaS.AfricaVarco集团公司北京办事处(BeijingOffice)地址：北京亚运村10名专职员工北京朝阳区北辰东路8号4名现场服务工程师北京国际会议中心7015室电话：010－64953025传真：010－6495302412名服务工程师在新加坡做后盾美国境内有专职人员负责中国业务欠平衡钻井UnderBalancedDrillingWhatisUBD什么是欠平衡

4、DefinitionofUBD:Atbottomofhole,drillingfluidpressureisintentionallydesignedlowerthanreservoirpressure欠平衡钻井定义:钻井过程中人为地使井底的钻井流体压力小于地层压力Pf---Pressureofdrillingfluid钻井流体压力Pr---Pressureofreservoir地层压力Pf>Pr:Overbalanced过平衡钻井Pf=Pr:Balanced平衡钻井Pf

5、oreholeStabilityHydraulicCalculationsCuttingsLifting欠平衡井范例SampleofUBDWellWhyisUBD为什么要欠平衡钻井UBDBenefits欠平衡钻井效益Increaseproductionduetoreducedformationdamage保护地层,提高产量Increasepenetrationrate提高钻井进尺速度Increasedrillbitworkinglife提高钻头的使用寿命Avoidcirculationlost避免钻井液漏失Reducedifferentialsticking减少压差卡钻Concurrentpr

6、oductionevaluation(flowdrilling)边钻边试井,准确预估产量Increasesafety（closewelloperation)关井钻入地层,保障安全DaqingOilFieldDistributionGasFieldDistributionDaqingUBDOperation(Sep.10,2001)WellWeishen5，大庆卫深5井DaqingUBDOperation(Sep.10,2001)WellWeishen5，大庆卫深5井Offshore,NorthSea,UK(9,1999)英国北海Landrigblowout,Mississippi,USA,Fe

7、b2001陆上井喷，美国，密西西比Landrigblowout,Mississippi,USA,Feb2001上井喷，美国，密西西比kPermeability-md25hHeight-ft25PrReservoirPressure-psia2500PwfFlowingWellPressure-psia1200uViscosity-cp.95reDrainageRadius-ft1500rwWell