砂岩地层深部延缓酸化酸液配方研究

:1000-2634(2000)02-0067-03X1,1,1(1.,637001):,:,;,(:Fe3+Al3+),:;;;;:TE39:A(12%HCl+3%HF),,,,,,,,[2,3,6,9]11.1SY/T588693,,(1):,(120);2g,0.001g;40ml,;80,1015min;,,;,,;,105;(,5%)(2):1231;21:,,,(,),222Vol.22No.220005JournalofSouthwestPetroleumInstituteMay2000X:19991015:(1963),(),,,,1;22:,31.2,(4),,,1;241.3604,,,,,5:,,(3692.1cm-1,3650.8cm-1,3620.0cm-1)(1636.0cm-1),H+,-OH[4,5]51032.9cm-11099cm-1,:(HCl),,,(1094800470cm-11;2;35862000,,[4,5],,2(1),,,[3,8](2),H+,HF,,[2](3)/,,,CaF2,(Fe3+,Al3+),Fe3+Al3+,Fe(OH)3Al(OH)3,[1,2,7]3(1),HF,,(2),,:[1]GinoDL,PlilRea.ANewAcidforTrueStimulationofSandstoneReservoirs[C].SPE37015,1996.477486[2].[J].,1995,(4):5255[3],,.BH211[J].,1992,(9)[4],.[M].:,1982[5]VC().[M].:,1982[6].[J].,1993,(4):56[7].[M].:,1997[8]SuchartCE,GdanskiRD.ImprovedSuccessInAcidStimulationsWithaNew-Organic-HFSystem[C].SPE36907,1996()(20)2.5,13C-303(2),323/m13C,33717271593458.43483.63501.93547.43477.53477.13461.82818.03282.03070.02751.5-30.66-30.17-31.06-27.27-31.40-31.60-31.30-30.80-30.20-30.41-31.90-31.40-29.20-29.95-30.90-30.80-30.40-30.40-29.10-28.5-28.70-29.90-28.70-27.50-27.60-31.00-29.70-28.70-28.50-31.10-29.80-29.50-29.5010001500m,,,,,,10602km2,23194108t,3,,,3,,,3:[1].[M].:,1994[2].[J].,1998,3(4)()962:lowerF/Alratio,andthelessthesecondarydamagebyacidiz2ing.KeyWords:nuclearmagneticresonance,spectrometer,matrixacidizing,chemicalequilibrium,sandstoneEFFECTOFCREEPINGREVERSIONOFPOLYMERSOLUTIONINPOROUSMEDIUMONTHEDISPLACEMEONTEFFICIENCYPUWanfen(SouthwestPetroleumInst),PENGCaizhen,YANGQingyan,etalJOURNALOFSOUTHWESTPETROLEUMINSTITUTE,VOL.22,NO.2,62-66,2000(ISSN1000-2634,INCHINESE)Thecreepingreversionexperimentsof3kindsofpolymersolutionswithdifferentmolecularweightwereconductedinporousmedia.Theporousmediaare3kindsofmicro-modelwithdifferentstructures.Theyarecapillarymodel,gridmodelandnaturalmodel.Therelaxationtimewasobtainedbymatch2ingtheexperimentaldata.Viscoelasticbehaviorsofpolymerso2lutionswithdifferentmolecularweightwereevaluatedbycom2biningtherelaxationtimeandflowratevariationratio.Theef2fectofcreepingreversionontheoildisplacementefficiencywaslaboratoryinvestigatedinartificialcores.Experimentalresultsshowthattherelaxationtimeincreasewithmolecularweight,andtheflowratevariationratioaffectedbythemolecularweight.Thecreepingreversionpropertycanbeusedtoimproveoildisplacementefficiency.KeyWords:polymersolution,creepingreversion,micro-model,relaxationtime,oildisplacementefficiency,corefloodingexperimentDESIGNOFACIDIZINGFLUIDFORMULAONRE2TARDINGACIDIZINGTREATMENTINSANDSTONEHUANGZhiyu(SouthwestPetroleumInst),HEYan,JIShumeiJOURNALOFSOUTHWESTPETROLEUMIN2STITUTE,VOL.22,NO.2,67-69,2000(ISSN1000-2634,INCHINESE)Aretardedacidsystemhasbeenpresentedwhichcanbeusedinsandstoneformation.Itconsistsofanorganicacidanditsammoniumsalt,aphosphoricacidandanammoniumfluo2ride.Resultshaveshowedthatthisacidizingfluidhaslowreac2tionratewhenreactingwithquartzsand,carbonatesandclaymineralscomparedwithmudacid.Ithasgoodretardingeffectsespeciallyinsandstoneformationwherehighclaycontentex2ists.Inaddition,theframeworkofsandstonehasnotbeende2stroyedaftertreatmentandsomemetallicionsuchasFe3+andAl3+canbetiedupsothatthesecondaryprecipitationwillnotoccur.KeyWords:acidizing,retardedacid,sandstone,stimula2tion,formationdamageANON-FLUORESCENTSHALE/FILTRATIONCON2TROLLERYANGXu(SouthwestPetroleumInst),WANGPingquan,LIGuangyuJOURNALOFSOUTHWESTPETROLEUMINSTITUTE,VOL.22,NO.2,70-72,2000(ISSN1000-2634,INCHINESE)Anon-fluorescentshale/filtrationcontroller,YW-22,hasbeensynthesizedwhichisacopolymerofawater-solublecationicmonomerandanoil-solublemonomer.Theperfor2manceevaluationconductinginlaboratoryandoilfieldhasindi2catedthatYW-22isamultifunctionaladditive.Ithasexcel2lentperformanceinfluidlosscontrolandshaleinhibition,andcanbeusedinhightemperaturedrillingsystem.MeanwhileYW-22candecreasethefrictionfactor(Kf)significantlyindrillingfluids.Itsnon-fluorescentpropertyhasbeentestifiedinlaboratoryandisofimportanceforwelllogging.KeyWords:Filtrationreducer,inhibitor,laboratorytest2ingEXPERIMENTALSTUDYOFDOWNHOLEMECHANIOCAL-PULSEGENERATORCHENXiaoyu(SouthwestPetroleumInst),LIANZhanghua,JIANGHongJOURNALOFSOUTHWESTPETROLEUMINSTITUTE,VOL.22,NO.2,73-76,2000(ISSN1000-2634,INCHINESE)Thepaperpresentsamechanical-pulsegenerator,whichisconnectedtothecoupling.Bythepressuredropofthece2menting,thegeneratorconvertstheliquidkineticenergyintothepressurepulsation,flowfielddisturbance,soundwavefield,andsoon.Itresultsinchangingthedownholeflowfieldandflowstatuswhentheenergyfieldpassesthroughtheliquidandattenuates,anditimprovesthedisplacementefficiency.Makinguseofthesignalsoftware,wedidthewaveformandspectralanalysisfortheresultsofthepulseexperimentofthemechanical-pulsegeneratorinlaboratory,andtestedthedynamicpres2sureofitsaxiscenterbythepressuretransduceranddatacol2lectingsystem.Itwasprovedthatthepulseefficiencyofthemechanical-pulsegeneratorisremarkable.KeyWords:pulsegenerator,spectralanalysis,cementingquality,flowfieldELASTICDYNAMICANALYSISOFTHICKWALLCYLINDERUNDERIMPACTLOADTAOChunda(SouthwestPetroleumInst),ZHAN