搜索
293Vol.29No.320076JournalofSouthwestPetroleumUniversityJun2007:1000-2634(2007)03-0078-033,(,610500):1990,,,;,;,,,:;;;:TE257:AEOP(extremeoverbalanceperfora2ting)[1],,,,,,,,[2,3],,(),[4-10]1EOP:,,,EOP11TCP,,,,,,,23:2006-12-25:(1965-),(),,,,©1994-2008ChinaAcademicJournalElectronicPublishingHouse.Allrightsreserved.(2)2()2(pwf(t)q(t)),1(pl(t),12:12dp=g(z2-z1)cos+u22-u212+21fu22dodz(1)pwf(t)=pl(t)+lg(z2-z1)cos+lu22-u212+21lfu22dodz(2)(),,sso-zp,pl(t)=pwf+lg(s-so)cos+lu22-u212+lf1u212do(so-zp-s)+lf2u222(Do-dgun)zp(3)sso-zp,pl(t)=pwf(t)+lg(s-so)cos+lf2u222(Do-dgun)(so-s)(4)t,q(t),12,A1A2,u2=u1A1/A22.2,dzpg(t)()pl(t)(),,,pgA+lgAcosdz-plA-l=lAdzducdt(5),uct=0s,pgpl(t)l,l,l=flu2c2(dodz)(6),f,do,f2.3,,,,,(),dE,W,dEf,dE+W+dEf=0CvodT+udu+gcosdz+W+dEf=0(7),Cvo(T-T0)+12u2+(-o)gcosz+pv-povok-1+fu22doh=0(8),Cvo();povooTo;pvTu;zh;k;f,(9)f=14lge/D3.7+5.74Re0.9-2(9)973:©1994-2008ChinaAcademicJournalElectronicPublishingHouse.Allrightsreserved.(9),eDRe2.4,,,,,(5)(6),(7)(9),(3)(4)32000m,30,20MPa,100mD,25%,5m,21/2,5.5,2.5/(100m),38MPa,1000m,35MPa,45MPa3431000m(35MPa,1.29m3),,,,,;,,4,1000m1500m(35MPa,1.92m3),(),,,4(1)EOP(2),(3),EOP:[1]HandrenPJ,JuppTB,DeesJM.Overbalancedperfora2tingandstimulationmethodforwells[C].SPE26515,1993.[2],.[J].,1999,18(2):43-46.[3],.[J].,2006,28(3):70.[4]PetitjeanL,B.Couet.ModelingofgasOdrivenfracturepropagationforoilandgaswellstimulation[C].SPE28084,1994.[5]GhalamborA,MAsadi,AzariM.Performanceevaluationofextremeoverbalancedperforating[C].SPE39459,1998.[6]GuoynesJC,PalmerWM,GranthamJ.ExtremeOoverbal2anceperforatingextendsperforationswithoutverticalgrowth[C].SPE37325,1996.[7]PetitjeanL,AbelJC,SchmidtJH.WellproductivityimprovementusingextremeoverbalancedperforatingandsurgingOcasestudy[C].SPE30527,1996.[8]GrieserB,SmithCC,BertrandB.Overbalancedperfora2tingfieldstudyinthetubbsand,bravodomefield[C].SPE37478,1997.[9]DeesJM,HandrenPJ.Anewmethodofoverbalancedperforatingandsurgingofresinforsandcontrol[C].SPE26545,1994.[10]BehrmannLA,McDonaldB.Underbalanceorextremeoverbalance[C].SPE31083,1996.()082007©1994-2008ChinaAcademicJournalElectronicPublishingHouse.Allrightsreserved.’sautomaticmatchingmodelonanalyzingthegasOwelldeclineofthenormalpressuregasreservoirisinvestigated.TheresearchshowsthattheLMmodelcanbeappliedtoanalyzethegasOwellratedeclineforanyboundaryOshapegasreservoir,however,asforthelowOpermeabilitygasreservoir,thecalculationresultstakeongreaterrors.ToimproveLMmodelpredicationaccuracy,awayofacquiringtheforma2tionparametersispresentedinthepaperbyfirstlyremovingtheunsteadyproductiondataandthen,followingtheLMautomaticmatchingmodeltogetformationparameters.Besides,theauthorsputforwardatouchstonetojustifythecalculationresults.Keywords:ratedecline;automaticmatching;numericalsimulation;pseudosteadyACCUMULATIONTYPESOFYAN107CONGLOMERATERESERVOIRSANDTHEINFLUNCEONWATERINJECTIONPRODUCTIONZHAOShuOhuai(SouthwestPetroleumUniversity,ChengduSichuan610500,China),DUZhiOmin,LBCuiOyan,etal.JOURNALOFSOUTHWESTPETROLEUMUNIVERSITY,VOL.29,NO.3,71-74,2007(ISSN1000-2634,INCHINESE)Abstract:thereservoirlithologyofYan107thickconglomeratereservoirisdominatedbydolostone.Attheearlystageofdevelopment,onthebasisoftherecognitionoftheporespacesbeingpores,thedevelopmentplanwasschemedaccordingtothedevelopmentmodelofcommonsandstoneandconglomeratereservoirs,but,aftertwoyearsdevelopmentandundertheconditionoflessthan5%recovery,theproductivitydeclinedfrom150t/datbe2ginningdownto20t/d,comprehensivewatercutwasashighas80%.Undertheconditionofnocoredataandtheloggingseriesbeingnotsuitableforfracturestudy,startedfromanalyzingthecontradictionexposedindevelopment,bymeansofwallcoring,pressurebuildOuptesting,thereservoirlithologydifferenceandaccumulationrelationsbetweenthetypes,aswellastheapplicationoftheindentificationofaccumulationtypesonthedevelopmentofYan107conglomeratereservoirs,arediscussedindetail.Keywords:conglomeratereservoir;accumulationtype;fracture;developmentcharacterTHEWELLTESTEXPLARATIONRELIABILITYEVALUATEDBYPRESSUREDISTRIBUTIONTANGShengOlai(SouthwestPetroleumUniversity,ChengduSichuan610500,China),WANGNuOtao,SHENGYongOwei,etal.JOURNALOFSOUTHWESTPETROLEUMUNIVERSITY,VOL.29,NO.3,75-77,2007(ISSN1000-2634,INCHINESE)Abstract:BecauseofthemultiOsolutionofwelltestanalysis,andnospecialtechniquemethodofreliabilityevalua2tionofexplarationbresult,pressuredistributionanalysisisusedtoevaluatetheexplarationresultobtainedformwelltest,thedatafromtheexplarationisdipictedintotheinterOwellpressuredistributionmapbetweenproducersandinjectors,andfurtherly,themapisemployedtochecktheaccuracyshchparametersaspermeabilityandsoon,theproblemofwelltestesplarationmultiOsoluaitonisovercomethroughadajustingpressuredistribution.Theformationparameterscanbeobtainedmoreprecissily,thereliabilityofwelltestexplarationcanbedaviced.Keywords:welltest;pressuredistribution;permeability;interOwellpressureTHEMODELLINGOFWELLBOREPRESSUREPERFORMANCEDURINGEXTREMEOVERBAL2ANCEPERFORATIONLIHaiOtao(Sout