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50%。[1]FeS、。。、。11.1。。BT-9300HQuantaFEG4506Q70E-1OMECPIP9.0DHR-2TACIR100CAMTEL。1.21、163318。、、、。、FeS。FeSRTE866+.1AStudyonthepropertiesofintermediatelayerbetweenoilandwaterafterelectricdehydratorcollapseinDaqingOilFieldHEFeng-yunHELingLIANGXiaoDONGJingYUTieCollegeofPetroleumEngineering,NortheastPetroleumUniversityDaqing163348,ChinaAbstract:TheelectricdehydratorfrequentlyappearscollapseinDaqingOilfield,thethicknessofintermedi－atelayerbetweenoilandwaterincreasesandtheeffectofthecommondemulsifierusedbecomesworse,whichshowsthatthePropertiesofintermediatelayerintheelectricdehydratorhaschanged,makingoil-waterseparationdifficult.Thispaperdetectedandanalyzedinterfacetension,interfacestrength,emulsifyingproperties,thecomposi－tionofsuspendingimpuritiesandtheamountofbacteriainintermediatelayerbetweenoilandwateraftertheelec－tricdehydratorappearscollapse.Theresultsshowedthatlowinterfacetensionandhighinterfacestrengthatoil-wa－terinterface,complexemulsification,subtleparticlesizeofsuspendingimpuritiesandhighcontentofFeSandbacte－riaexistinintermediatelayerbetweenoilandwaternow,whichbringshugetroubleincrudeoildehydration.Keywords:Intermediatelayer;Emulsion;Collapse;FeS;SuspendingimpuritiesDOI10.16247/j.cnki.23-1171/tq.201806442018-01-15(1965－)。Sum273No.06ChemicalEngineer201806201806GB6541-1986《》。CIR100。,。21L45℃30minOMECPIP9.0。324h500mL10%～20%。4300mLQuantaFEG450。5SYT0532-1993。22.1、50℃5.258mN·m-123mN·m-1。。、。1～3、3。。、、、、/rad·s-1/N·m-10.300.200.100.000204060801001201Fig.1Comparisonofelasticmodulusofintermediatelayerbetweenoilandwaterwhenelectricdehydratorcollapsesandnormaloperation/N·m-10.150.100.050.00020406080100120/rad·s-12Fig.2Comparisonofviscousmodulusofintermediatelayerbetweenoilandwaterwhenelectricdehydratorcollapsesandnormaloperation/rad·s-1/N·m-10.500.400.300.200.100.000204060801001203Fig.3Comparisonofcompositemodulusofintermediatelayerbetweenoilandwaterwhenelectricdehydratorcollapsesandnormaloperation45201806[2]。、、、[3,4]。[5]。、。2.2。9.75μm32.94μm。8.23μm182.17μm。[6-8]。4Fig.4Oilemulsificationsituationofthetopofintermediatelayerbetweenoilandwater5Fig.5Oilemulsificationsituationofthebottomofintermediatelayerbetweenoilandwater2.30.61～55.36μm3.9μm7.2μm[9]、、[10]。2.4。8007。420150100500/μm/%/μm6、Fig.6Distributionofparticlesizeandcumulativesizeinthesewageoftransitionallayer0.10~0.110.15~0.170.23~0.260.36~0.400.55~0.610.85~0.941.30~1.452.00~2.233.07~3.424.71~5.257.24~8.0511.11~12.3617.05~18.9726.16~29.1240.15~44.6961.61~68.5894.55~105.24145.10~161.49222.66~247.824620180689274353535647800.001.002.003.004.005.006.007.008.00CoFeNaMgAlSiSClCa/keV、。。7COSiFe。、[11]、、、[12]FeS、。FeSFeSFe(1-x)S(x=0～0.223)[13,14]FeS。1。2.52。2SRB、FEBTGB50℃pH7.5SRBFeS[15]。31、、、、、。2。3、、、、FeS、。FeSFeS。2Tab.2TheamountofbacteriaintheintermediatelayerwhencollapseSRBFEBTGB/·mL-1950002000002500001Tab.1ElementalanalysisofsuspendingimpuritiesintheintermediatelayerSiSClCaK/%10.156.491.593.51.98COFeNaMgAl/%17.3428.1523.074.521.334.147800Fig.7Beamspotenergyspectrumwhenthesuspendingimpuritiesaremagnified800timesSE1100μm472018060.3ng0.01ng。0.20mg1.5μg·g-10.05μg·g-1。2.5。、、、。。3。、、、、、。1.、-、J.201722243-45.2.-、、J.201625349-53.3.J.201623190-91.4./ICP-AESJ.200817242-44.5.ICP-MSJ.201729252-54.6.、J.201524317-21.7.-、、J.201734473-76.8.-PJ.20134991134-1135.9M.,1992.64.10.J.2011272257-260.32!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!1,,,./J.2010,302:263-268.2,,,..J.1998,143:1-4.3,,,.J.,2005,9521-523.4,,,.J.,2015,221:68-73.5.D.:,2005.6,,,.J.,2010,176:10-102.7,,,.J.,2012,191:131-134.8DílsonC.MaiaFilho,JooB.V.S.Ramalho,LucianaS.Spinelli,ElizabeteF.Lucas.Agingofwater-in-crudeoilemulsions:Effectonwatercontent,dropletsizedistribution,dynamicviscosityandsta-bilityJ.ColloidsandSurfacesA:Physicochem.Eng.Aspects,2012,39612:208-212.9,,,.J.,2009,384:483-486.10,,,.-J.2003,195:1-6.11,,,.J.,1995,124:342-346.12.D.:,2009.13,,,.J.,2012,224:33-37.14.D.:,2006.15,,.FeSJ.,2001,184:319-319.48