含硫气井井喷事故受体致死概率分析

:100020747(2009)05206412051,2,1,3(1.;2.;3.):(2007BAK22B05;2008BAB37B05):,Fluent,,,:,,1230m,,,1000m,7110:;;;;:TE99:AProbabilityofreceptorlethalityinblowoutofsourgaswellsWuQingshan1,2,QianXinming1,GuoZaifu3(1.SchoolofAerialSpaceScienceandEngineering,BeijingInstituteofTechnology,Beijing100081,China;2.ChinaNationalPetroleumCorporation,Beijing100007,China;3.ChinaAcademyofSafetyScienceandTechnology,Beijing100029,China)Abstract:BytheFluentsoftwareonthehigh2performanceclustersystemofparallelcomputing,thecomputationalfluiddynamics(CFD)methodwasappliedtosimulatethetemporalandspatialevolvementofhydrogensulfide’sconcentrationduringtheblowoutofatypicalnaturalgaswellwithhydrogensulfideinSichuanandChongqing,andthedifferenceandintegralcalculationswereconductedtoobtainthedistributionoftoxicityloadforhydrogensulfide.Thentheprobabilityoflethalityforreceptorsaroundthewellwasanalyzed.Thetopographicconditionofthegaswellhadagreatimpactonthecalculationresults.Thetopographicconditionoftheselectedgaswellwasflatontheeast,westandnorthsides,dominantlylowmounds,andtherewasamountainof1230maltitudeonthesouthside.Duetotheinfluenceofthemountain,thepositionofsecondpeakvaluefortoxicityloadandlethalityprobabilitycanreach1000mfromthewellundernortherlywind.Soitmustbefullyconsideredwhenperformingtheconsequencesimulationandquantitativeriskassessmentofgaswells.Thismethodispreferableinthequantitativeriskassessmentandsafetyplanningofsourgaswells.Keywords:sourgaswell;blowout;receptorlethalprobability;quantitativeriskassessment;topographiccondition0,[123],,,,,[4],,11.1(1),500m,,,,,(CFD),146200910PETROLEUMEXPLORATIONANDDEVELOPMENTVol.36No.5Fluent[5],2,,N2S,,,10m,10m,,,,(1000m),,,1.2,,,1230m,,,(3),38,0.5m/s1.0m/s3.0m/s,F3m/s,,,,1.0m/s,0.5m/s[6],438.5104m3/d15min,[7],1.341m,144mg/m3(100ppm)432mg/m3(300ppm)864mg/m3(600ppm)1440mg/m3(1000ppm)144mg/m3,[8];432mg/m3[9](IDLH);864mg/m31440mg/m3,,,,,,,246Vol.36No.5,,42CFD,,160104,2.3104,,,,,,,Delaunay,,,,55,(1):Pc=Cndt(1)Pc,;C,mg/m3;t,min;n,,3.5[10],,6,,,1000m346200910:63,:Pr=a+blnPc(2)Pr,;ab,a=-29.415,b=1.443[10](ChemicalAbstractService,CAS)778320624,:864mg/m330min,1152mg/m35min(2)1,,1/(mgm-3)/min/%144606.00108-0.250432492.2910105.0150.0864301.5910117.8099.8115257.2410106.6796.0144039.4910107.0698.07,,,,,,,,,74,,,,,,:[1],,,.[J].,2008,35(4):3852396.JiaChengzao,ZhaoZhengzhang,DuJinhu,etal.PetroChinakeyexplorationdomains:Geologicalcognition,coretechnology,explorationeffectandexplorationdirection[J].PetroleumExplorationandDevelopment,2008,35(4):3852396.[2],,,.[J].,2007,34(5):5132520.ZhaoWenzhi,HuSuyun,DongDazhong,etal.Petroleumexplorationprogressesduringthe10thFive2YearPlanandkeyexplorationdomainsforthefutureinChina[J].PetroleumExplorationandDevelopment,2007,34(5):5132520.[3],,,.[J].,2004,31(2):124.DaiJinxing,HuJianyi,JiaChengzao,etal.Suggestionsfor446Vol.36No.5scientificallyandsafelyexploringanddevelopinghighH2Sgasfields[J].PetroleumExplorationandDevelopment,2004,31(2):124.[4].[J].,2004,4(2):89291.LiuTiemin.Quantifiedriskassessmentforlowprobabilitymajoraccidents[J].JournalofSafetyandEnvironment,2004,4(2):89291.[5],.[J].,2007,3(4):20224.XiXuejun,DengYunfeng.AnalysisondispersionofH2Sduringwellblowout[J].JournalofSafetyScienceandTechnology,2007,3(4):20224.[6]CanadaAlbertaEnergyandUtilitiesBoard.Directive071:EmergencyPreparednessandResponseRequirementsfortheUpstreamPetroleumIndustry(formerlyGuide71)[EB/OL].[7]AQ201622008,[S].AQ201622008,Specificationforignitiontimeofoutofcontrolonwellheadofnaturalgaswellinvolvinghydrogensulfide[S].[8]SY/T508722005,[S].SY/T508722005,Recommendedpracticeforsafedrillingoperationsinvolvinghydrogensulfide[S].[9]SY/T613722005,[S].SY/T613722005,Recommendedpracticesforoilandgasproducingandgasprocessingplantoperationsinvolvinghydrogensulfide[S].[10]CanadaAlbertaEnergyandUtilitiesBoard.EUBH2SAmodelforcalculatingemergencyresponseandplanningzonesforsourgasfacilities,Vol.2:EmergencyResponsePlanningEndpoints[EB/OL].:(19632),,,,,:9,:100007E2mail:[e-mail]:2009204210:2009208222()20096,,,,,,,,,,,CO2,,,ConstructionofacarbonatereservoirmodelusingtransientpressuredataSeyedSadeghTaheriRudsari,MohammadBagherGhanizadeh,ManuchehrHaghighi,,,,,,,,,,,,,546200910: