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1、ThisdocumentwasdownloadedfromthePenspenIntegrityVirtualLibraryForfurtherinformationcontactPenspenIntegrityAddress:PenspenIntegrityTelephone:+44(0)1912382200HawthornSuiteFax:+44(0)1912759786Units7-8Email:integrity.ncl@penspen.comSt.Peter'sWharfWebsite:www.penspenintegri
2、ty.comSt.Peter'sBasinNewcastleuponTyneNE61TZUNITEDKINGDOMWTIAInternationalPipelineIntegrity&RepairsConferenceSydney,Australia.WeldingTechnologyInstituteofAustralia.9thMarch2004PIPELINEINTEGRITY:SOMELESSONSLEARNT1Hopkins,PABSTRACTThepipelinebusinessnowhasmanyyearsofoper
3、ationalexperience.This,combinedwithaccesstosophisticatedinspectiontoolssuchasintelligentpigs,improvedcoatingsandprotection,andadvancedcalculationmethodsfortheassessmentofdefects,shouldensurethatpipelinesarebothsafeandsecure.However,therecontinuestobefrequentandtragicpi
4、pelinefailuresaroundtheworld.Whatlessonscanwelearnfromtheseinspections,assessmentsandfailures?Thispaperconsiderssomeofthelessonslearntfromrecentfailuresandfieldexperiences,andconcludeswithsomeguidanceforallengineersinthepipelinebusiness.KEYWORDSPipeline,integrity,safet
5、y,management,pipelinefailures,intelligentpigs,corrosion,outsideforce,surveillance,datamanagement,metalloss,cracks,dents,standardisation,errors,lessonslearnt.1PenspenIntegrity,HawthornSuite,Units7-8,StPeter’sWharf,StPeter’sBasin,NewcastleuponTyneNE61TZ,UK.Tel.44(0)19123
6、82202.emailp.hopkins@penspen.comPage11.INTRODUCTIONWeareexperiencingchangeinthepipelinebusiness[1,2]:poorqualitymaterialsandalackofunderstandingofmajorriskmeantthat30yearsago,andbefore,weneededstandardsthatensuredwehadgoodqualitypipe,carefulrouteing,etc..Butnowweknowth
7、atin-servicedefects(damage,corrosion)failpipelinesandcausecasualties[3].Hence,apipeline’s‘integrity’isdependentonthedesign,operationandmanagementofapipelineConsequently,wearenowseeingthepublicationofregulationsandstandardsthatformallyrequirepipelineoperatorsto‘manage’t
8、heirpipeline’sintegrityandhaveinplaceformalriskmanagementplansthatclearlymitigateandcontrolrisks.RecentfailuresintheU