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1、Proceedingsofthe20129thInternationalPipelineConferenceIPC2012September24-28,2012,Calgary,Alberta,CanadaIPC2012-90607RISKEVALUATIONATNATURALGASCOMPRESSORSTATIONSANDABOVEGROUNDINSTALLATIONSR.P.Cleaver,GLNobleDenton,AshbyRoad,K.Maycock,GLNobleDenton,AshbyRoad,Loughborough,Leicester
2、shire,LE113GR,UK.Loughborough,Leicestershire,LE113GR,UK.+441509282426,phil.cleaver@gl-group.com+441509282315,karen.maycock@gl-group.comS.J.Potts,NationalGrid,NGHouse,WarwickA.R.Halford,GLNobleDenton,AshbyRoad,TechnologyPark,GallowsHill,Warwick,CV34Loughborough,Leicestershire,LE1
3、13GR,UK.6DA,UK.+441926656231,+441509282434,ann.halford@gl-group.comsteve.potts@uk.ngrid.comD.J.McCollum,NationalGrid,NGHouse,A.W.T.Sadd,GLNobleDenton,AshbyRoad,WarwickTechnologyPark,GallowsHill,Warwick,Loughborough,Leicestershire,LE113GR,UKCV346DA,UK.+441926656221,+441509282592,
4、alf.sadd@gl-group.comdavid.j.mccollum@uk.ngrid.comM.R.Acton,GLNobleDenton,AshbyRoad,Loughborough,Leicestershire,LE113GR,UK+441509282122,michael.acton@gl-group.comABSTRACTAspartofacommitmenttounderstandingandminimisingINTRODUCTIONtherisksofitsoperations,NationalGridhascarriedouta
5、QuantitativeRiskAssessmenthasbeenfoundtobeaveryprogrammeoftheoreticalandexperimentalwork,usefulaidtodecisionmaking.NationalGridisanticipatingasupplementedbysitesurveys,todevelopamethodologytosignificantprogrammeofnewbuildandmajormodificationstoassesstherisksfromcompressorsitesan
6、dotherAboveGroundexistingcompressorstationsandAGIsoverthecomingyearsInstallations(AGIs)associatedwiththenaturalgasduetochangesinthesourcesofgassupplyandtheneedtotransmissionpipelines.Acomputerpackagehasbeenmodifyandupgradeinstallationswhichhavebeenoperatingforproducedtoencodethi
7、smethodologytomakeiteasertouse.manyyears.ThepreviousmethodsofcalculatingriskwereThepackagecontainsanumberofmodelsthatassessthetimeconsumingtouseandthereforenotflexibleenoughtoconsequencesofreleasesatfixedinstallations.Thesearemodelmultipleoptionsinafastmovingprojectenvironment.l
8、inkedwithfrequencydatatoenableariskassessmentto
