[](TSXZ2006-15)ExperimentalstudyonsolidscaleinhibitorperformancesFanZexia,ZuoJingluan,YanFangping,RenShaoran(CollegeofPetroleumEngineering,ChinaUniversityofPetroleum,Dongying257061,China),,,(,257061)[],BaSO4。12,,:,,,;,;;5mg/L;,150℃。[]BaSO4;;;[]TQ085+.4[]A[]1005-829X(2008)10-0080-03Abstract:Seawaterinjectionismainlyusedinoffshoreoilfieldtoenhanceoilproduction.TheBaSO4scaleofitisseriousduetotheincompatibilitybetweenthestratumwaterandseawater.AimingatthescalingsituationofWei12BlockatNanhaiOilfield,theexperimentalstudyonsolidscaleinhibitionandanticorrosiontechnologyhasbeencarriedthrough.Theconclusionsareasfollows:Understirringandflowingconditions,theinitialdissolvingspeedisquitefast,butthespeedgetsslowerwiththeextensionoftime.Intheend,itbecomessteady.Athightemperature,thedissolvingspeedisfasterthantheoriginalspeedatlowtemperature.Thespeedgetsclosergraduallywiththetime.Third,theexistenceofoilacceleratesthedissolvingrate,obviouslyhigherthanaddingwateronly.Theminimumeffectiveanti-scalingconcentrationis5mg/L.Moreover,thesolidscaleinhibitorhasanexcellentthermalstabilityandcanbeusedinoilfieldsattemperatureslowerthan150℃.Keywords:BaSO4scale;solidscaleinhibitor;dissolvingspeed;minimumeffectiveanti-scalingconcentration,。86.3%,,,、,。,,〔1~4〕。12,。,90%。Ba2+、Sr2+,SO42-,。12,,,,。1。、,。,,,,,。,,2810200810IndustrialWaterTreatmentVol.28No.10Oct.,200880,,、、,〔5,7〕。22.1:、、、、、、、、。:、、、、V-33()、1CP2000()、。2.2121。,。9∶1,BaSO4。,9∶1。2.2.1。,,,m1。500mL,95℃,。5d,、,,m2。,20、30、40、50、80。:y=0.0303x-0.2109。(1)。600mL,,2d,,1/3,2/3。,,—,。(a)。,70℃(13.892g,3)、80℃(12.782g,3)、95℃(11.856g,3),1。1,,,,;,。(b)。,95℃()1∶2。2。2,,,。,。(2)。,,,(0.007731m3/d,95℃)。48h,3。3,。2.2.2MIC,0.0300.0250.2000.0150.0100.0050100200300400/h70℃80℃95℃/(g·g-1·L-1·d-1)1112Ca2+Mg2+Ba2+Sr2+SO42-HCO3-CO32-28951833610339020916CaCl237112050026182395833884CaCl2:,mg/L。0.090.080.070.060.050.040.030.020.0101002003004005001∶2/(g·g-1·L-1·d-1)/h2,:2008-10,28(10)81。MIC。(),,。MIC,。,Ba2+、SO42-,,。95℃,4。4,5mg/L,,MIC5mg/L。2.2.3,,150℃2、5、10h,。,,,150℃。312,,:,,,;,;,;5mg/L;,150℃。[][1],,.[J].,2004,37(6):14-16.[2],,,.[J].,2002,31(5):266-269.[3],,,.[J].(),2006,30(1):115-117.[4],,,.12-1[J].,2005,22(2):122-125.[5],,,.[J].,2004,21(8):621-625.[6]HsuJF,Al-ZainAK.EncapsulatedscaleinhibitortreatmentsexperienceintheGhawarField,SaudiArabia[R].SPE60209,2000.[7],,,.[J].,2003,29(S1):159-160.0.0120.0100.0080.0060.0040.0020/(g·g-1·L-1·d-1)100200300400500/h30.300.250.200.150.100.050501001502002500mg/L5mg/L10mg/L15mg/L/MPa/h4MIC[](1966—),1989(),2006(),。:0546-7878139,E-mail:fanzexia@upc.edu.cn。[]2008-04-29()2008-10,28(10)!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!··ITT。ITT,20083。ITT,。,,2007“”。。(2008-07-24)82