【7A文】Drilling Engineering(钻井工程英文课件).ppt

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1、1DrillingEngineeringContentsOverviewRigcomponentsDrillstringDrillbitsFormationpressuresWellcontrol2CasingCementDrillingfluidsHydraulicsDirectionaldrillingDirectionalSurveyingMeasurementwhiledrillingSubsea3Chap.1OverviewIntroductionDrillingPersonnelRotarydrillingequipmentT

2、hedrillingprocessOffshoredrillingDrillingeconomics4Chap.1Overview1.1ExplorationandproductionlicencesInUK,thesecretaryofStateforEnergyisempowered(授权),onbehalfoftheGovernment,toinvitecompaniestoapplyforexplorationandproductionlicencesontheUnitedKingdomContinentalShelf.Explo

3、rationlicencesmaybeawardedatanytime.(mainlyallowtoacquireseismicdata,nottodrillanydeeperthan350meters.)1.Introduction5ProductionlicencesareawardedatspecificdiscreteintervalsknownaslicencingRounds.1.2Exploration,DevelopmentandAbandonmentBeforedrillinganexplorationwell,comp

4、anyhavetoobtainaproductionlicence.Thelicenceallowthecompanytodrillexplorationwellsintheareaofinterest.Chap.1Overview6TheobjectivesofexplorationwellTodeterminethepresenceofhydrocarbonsToprovidegeologicaldata(core,logs)forevaluation.Toflowtestthewelltodetermineitsproduction

5、potential,andobtainfluidsample.Chap.1Overview7ThephasesinthelifeofoilfieldExplorationAppraisalDevelopmentMaintenanceAbandonmentChap.1OverviewRoleofDrillingChap.1Overview92.DrillingpersonnelDrillingawellrequiresmanydifferentskillsandinvolvesmanycompanies.Operator：Theoilcom

6、panywhomanagesthedrillingand/orproductionoperations.Injointventuresonecompanyactsasoperatoronbehalfoftheotherpartners.Theoilcompanywillemployadrillingcontractortodrillthewell.Chap.1Overview10ContractingstrategiesDay-ratecontract(日费制)Themostcommontypeofdrillingcontractisad

7、ay-ratecontract.TheoperatorpreparesadetailedwelldesignandprogramofworkforthedrillingoperationDrillingcontractorsimplyprovidesthedrillingrigandpersonneltodrillthewell.Thecontractorispaidafixedsumofmoneyforeverydaythathespendsdrillingthewell.Allconsumableitems(e.g.drillingb

8、its,cement),transportandsupportservicesareprovidedbytheoperator.Chap.1Overview11Turnkeycontract(