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1、油—水兩相流流型研究（Flowpatternofoilwatertwophaseflow）FlowpatternofoilwatertwophaseflowChenJiezhang,Longjiang,YanDafan(Universityofpetroleum,Beijing,ChangpingDistrict)"##!")!!!!!!!!!!!!!!!!!!Oilwatertwo-phaseflowisanimportantpartofpetroleumindustryAverycommonphenomenon.Theflowofoilwatermixtureisst
2、udiedChangebehavioranditsflowlawingatheringpipelineItissuretopredictitsfrictionalpressuredropTheeconomicdesignisofgreatsignificance.ThisarticlegivesabriefintroductionInrecentyears#"athomeandabroadontheoil/watertwo-phaseflowTheresultsofthestudyincludetheflowofoil-watertwo-phaseflowTherelat
3、ionshipbetweentypeandflowregimetransition,flowpatternandpressuredropSometheoreticalandexperimentalstudiesarepresented,andthefutureofoiltowaterisalsopresentedSomedirectionsfortheresearchoftwo-phaseflowareputforward.Subjectheadingsoil-watertwo-phaseflowModelpressuredroptest!!!!!!!!!!!!!!!!!
4、!Wellinterpretationprovidesapowerfultool.Inaword,oilwatertwo-phaseflowThetypestudyisthekeyanddifficultpointtostudytheoil-watertwo-phaseflowImportanttheoreticalandpracticalsignificance.Thestudyofoil-watertwo-phaseflowiscarriedoutfromthedragreductionofheavyoilThebeginning,from2,34567inthe"a
5、ge","8to9"era(60)allothersNostudieshavebeendoneontheannularflowpatternofoilinwaternuclei,theybelieveInthetransportofhighviscosityoil,thepressuredropofthisflowpatternisminimal,butduetovariousAsamatteroffact,itisdifficulttomaintaintheoil-watertwo-phaseflowinoilfieldproductionOilinwaternucle
6、arflowpattern.Inaddition,<57(99%years),-50=4)>and5@+0?(99&years)yesA/BandTheB/AdispersionflowregimehasbeeninvestigatedItisgenerallybelievedthatthepressuredropofoil-watertwo-phaseflowdependsmainlyonThepressuredropoftheB/AdispersedflowpatternismuchsmallerthanthatoftheexternalviscosityA/BThe
7、pressuredropofthedispersedflowpattern,whentheconcentrationofthedispersedphaseisgreaterthanC',istheoil-ThewaterdispersionsystemisnonNewtonian,andtheoil-watertwo-phaseflowpressure$$overview!Oilwatertwo-phaseflowiswidelyusedinpetroleumproduction,especiallyinthefieldofp
