黏弹性表面活性剂及其在油田中的应用

:2003-12-08;:2004-02-24:(1980-),,,,:[phone],(,610500):,,,,,,,,,,,,:;;;:TQ423:A:1001-1803(2004)03-0173-03,:,:()()[1],,,1:[2](X-()[3][4][2][5][6],X-,(),2211,,,(),[7],,,,[8],,()[7]212(0),(),(),,,,,(E),,,JD,,J,,,:(t)=0t0(t)=E(0,t)t0J(t)=(t)/0,J(t)J(t)2131%,,37134320046ChinaSurfactantDetergent&CosmeticsVo1.34No.3June2004©1995-2006TsinghuaTongfangOpticalDiscCo.,Ltd.Allrightsreserved.,,(),;,,()1[8]1Fig.1Rod-likemicellewrapedandformedreticulatestucture214,;,3,,,,;,([9])3311,,,(VES),30%45%,VES90%1,VES,,,VES,,VES,,,,VES,,,VES,;,VES[10],VESHEC,VESpH,VES,,VES,,VES2100,6,14%VESTab.1Conductivityof4%VEScomparedwithguarfaracturingfluid//m2/%w(VES)=4%20/405605209320/4056025045w(VES)=4%16/208407709216/208403303916/2084044052312,,,;,,[1],/,,,,(),,,,,,313,,,,47134©1995-2006TsinghuaTongfangOpticalDiscCo.,Ltd.Allrightsreserved.,,,(75%),,,,,[5],314(HCl),,,,,,,,,VES,pH,;CO2,VES,,[11]4,,,:,011%;(,,);,;:[1],1:[J].,1999,21(3):56-59.[2]ASWALVK,GOYALPS,THIZYAGARAJANP.Small-ang1eneu2tron-scatteringandviscositystudiesofCTAB/NaSalviscosticmicellarso2lutions[J].JphyschemB,1998,102:2469-2473.[3]G-XZHAOJ,XXIAO1Rheologcalpropertiesofthea-queousmixturesofcationic-anionicsurfactants[J].ColloidPolymSci,1995,273:1088-1094.[4]R1[M].,11992.[5],1[J].,1999(1):24-26.[6]SOLTEROJFA,PUIGJE1Rheologyofthecetyltrimethyl-ammoniumtailste-watersystem,21linerviscoelasticregime[J].Langmuir,1996,12:2654-2662.[7]CRAIGAHERB,ROBERTKPRUDHOMME.Stuactureandflowinsurfactantsolutions[J].ACSSyemposiumSeris,1994,578:45-49.[8]FRANCOISLEQUEUT,SAUVEURJCANDAU.Dynamicalpropertiesofwormlikemicelles-deviationsfromtheclassicalpicture[J].ACSSympSer,1994,578:51-62.[9]RECHAGEH.Interestingcorrelationsbetweentherheologicalpropertiesofrod-shapedmicellsanddyeassemblies[J].ACSSympSer,1994,578:63-84.[10],1[J].,2002,32(1):32-42.[11],,,.[J].,2003,5:164-166.Visco-elasticsurfactantanditsapplicationsinoilfieldoperationLIQin,CHENFu(SouthwestPetroleumInstitute,ChemistryDepartment,Chengdu610500,China)Abstract:Propertiesofvisco-elasticsurfactants(VES),thewayandlaboratorymeansforidentifyingtheproperties,aswellasinfra-micro-structureandrheologicalcharacteristicswereintroduced.AstheconcentrationofVESsolutionincreasesuptoacriticalvalue,thesphericalshapedmicelleschangetowormlikemicelleswithasuddenraiseoftheviscosity.Astheconcentrationfurtherincreases,thewormlikemicellesgrowandexpandrapidlyandlinear,flexiblerodlikemicellesareformed.Theflexiblerodlikemicelleswilltwine,tangleandevenmergetogether,formingsuper-moleculesofthree-di2mensionalstructure.Thenthesolutionwillbecomehighlyviscoseanddisplaystrongvisco-elasticcharacteristics.Theappli2cationsofVESinoilfieldoperation,suchasinfracturingfluid,acidifyingfluid,drillingslurry,andinenhancingoftheoilrecoveryweresummarized.Thefutureprospectandissuestobesolvedwerealsobriefed.Keywords:surfactant;visco-elasticity;rheologicproperty;oilfield5713:©1995-2006TsinghuaTongfangOpticalDiscCo.,Ltd.Allrightsreserved.