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:1000-2634(2001)04-0023-03X1,1,2,2(1.,457001;2.,637001):,,:,,,,:,,,,:;;;:TE373:A,1,,,,,,:(1),,,,,,,Rp(2)1234Vol.23No.420018JournalofSouthwestPetroleumInstituteAug2001:2001-01-12:(960405):(1961-),(),,,©1994-2008ChinaAcademicJournalElectronicPublishingHouse.Allrightsreserved.(1)2,:(1),;(2);(3);(4);(5)(2)(3)N;(6)PDF2,,,,2:,/,(1)1,,,,;,xminxmax,5%,3,,,,,,[3,4],ANN,:422001©1994-2008ChinaAcademicJournalElectronicPublishingHouse.Allrightsreserved.:Rp=RfRi(Re+Rm+Rb),Rf,Rf=0,Rf=1Ripwsl;pwslpi(|pwsl-pi|1%)Ri=1,Ri=0.9ReRmRb()5,,:(1),;;(2);(3),,,,,:[1].[M].:,1988.[2]CaldwellRH.TheuseofcomputerizedstatisticaldatainRisk2appraisedeconomicanalysisofoilandgasprospects[J].JPTApr,1986,447-452.[3],.[J].,1999,21(2):5-8.[4],.[A].99-[C].:,1999.[5]Chenwei,Duanyonggang.NewanalysismethodofDSTpressurehistoryusingflowratedeconvolutioninLaplacespace[C].SPE/CIM98-77,ThePetroleumSociety49thAnnualTechnicalMeetingofCanadian,June8-10,1998.()3500,70%,,,,,,,,(:),,,,3500,,,,36,::;:6052481046196:;:300220:(022)23973378,23962479;:23973378:5:@public.tpt.tj.Cn524:©1994-2008ChinaAcademicJournalElectronicPublishingHouse.Allrightsreserved.(ChengduBranch,AcademiaSinica,Cheng2du,Sichuan610041,China).JOURNALOFSOUTHWESTPETROLEUMINSTITUTE,VOL.23,NO.4,13-16,2001(ISSN1000-2634,INCHINESE)Themotionofthedrillingliquidintheannularoutofthedrillingstringcanbeclassifiedastwocases,thepowerlawfluidflowandthespiralflowinpipe.Theconstructiveequationofthepowerlawfluidisnoteasytofindthesolutionduetothenon2lineartermsinthemotionequation.Sothepaperpresentedthenewmethodtosolvethenon2linearproblems,whichappliedthecomputersymbolicoperation,theimprovedKantoravichdifferentialmethodandthepowerlawfluidmodel,andusedthemethodofthelocallinearization.Itistheapplicationofthecomputerintelligentanalyticalmethodforthenon2linearprob2lems,andtheunsteadyflowofthepowerlawinpipewasde2scribedinthispaper,theapproachandresultcanbeextendedtothespiralfluidmotionofthepowerlawfluid.KeyWords:Non2Newtonian,fluidpowerlawfluid,drillingfluid,computer,symbolicoperation,analyticalmothod,nonlinearflowACCURATESOLUTIONTOTHEDYNAMICMATHMOD2ELOFDUALPERMEABILITYFRACTALRESERVOIRLIQi2shen(SouthwestPetroleumInstitute,Nanchong,Sichuan637001,China),PENGTuo,HUGuo2qiang.JOURNALOFSOUTHWESTPETROLEUMINSTITUTE,VOL.23,NO.4,17-19,2001(ISSN1000-2634,INCHI2NESE)Thenon2linearfractaltheorywasappliedtofluidflowinheterogeneousreservoir.Throughanalyzingthefluidflowinre2alreservoir,thefractaldimensiondfandfractalindexwerein2troducedtodescribethefractalcharacterizationandreservoirheterogeneity,accordingtowhichthedynamicmathmodelofdualpermeabilityfractalreservoirwasestablished.Consequent2ly,themathmodelaccuratesolutionwaspresentedbyusingor2thodoxtransformmethod.KeyWords:heterogeneousReservoir,mathematicalmod2el,fractalunsteadyflow,pressureanalysisAPPLICATIONOFNUMERICALSIMULATIONTOE13RESERVOIROFGASIOILFIELDINCHAIDAMUBASINHUGuo2qiang(E&DInstitute,QinghaiBranch,PetroChina,Dunhang,Gansu736202,China),LIUSu2yun,DENWui.JOURNALOFSOUTHWESTPETROLEUMIN2STITUTE,VOL.23,NO.4,20-22,2001(ISSN1000-2634,INCHINESE)Numericalsimulationtechnologyisanimportantwaytostudyoilreservoir,whichisusedtoemulateoilfieldproduc2tion,replaytheoilfieldproductionhistory,predictthereservoirpressureandoilsaturationdistribution.BasedonthenumericalsimulationofE13oilreservoirofGasioilfieldinChaidamuBasin,theoil2watersaturationdistributionwasinvestigatedandtheproductionperformancewaspredicted,whichprovidedneces2saryinformationtoimproveoilrecoveryanddevelopremainingoilinlatestage.KeyWords:numericalsimulation,productionhistorymatch,remainingoildistribution,EOR,ChaidamuBasinRISKEVALUATIONOFWELLTESTDESIGNZENGDe2ren(ZhongyuanOil&GasFieldCompany,Puyang,Henan457001,China),PENGTuo,HUANGCheng,etal.JOURNALOFSOUTHWESTPETROLEUMIN2STITUTE,VOL.23,NO.4,23-25,2001(ISSN1000-2634,INCHINESE)Theschemeforwelltestisfrequentlymadeempirically,andtheremaybelargedifferencesbetweenthedesigngoaloftestingandtheactualoutcome,makingdatainterpretationdif2ficultandunreliable.Theproblemsaremainlyderivedfromtwoaspects:firstisthedifficultyofaccuratelyestimatingthepa2rametersofthewell,fluidsandformations,andsecondisthelackofmethodforsystematicevaluationofthetestdesign.Thedesigncanbeevaluatedthroughwelltestsimulatorwhichgen2eratesdiagnosecurveforspecificsuitofparameters.MonteCar2lostochasticsimulationisappliedtoevaluateriskderivedfromparameteruncertaintyinwelltestdesign,inwhichartificialin2Abstract2001©1994-2008ChinaAcademicJournalElectronicPublishingHouse.Allrightsreserved.:welltesting,design,simulation,artificialin2telligenceTHEDETERMINATIONOFMINIMUMMISCIBILITYPRESSUREFORGASFLOODINPUBEIOILFIELDGUOXiao(SouthwestPetroleumInstitute,Nanchong