固体防垢块的研制张贵才

21820048精细化工FINECHEMICALSVol.21,No.8Aug.2004张贵才,张乔良,吴柏志,葛际江＊,任　熵(,　257061):、。、。(HEDP),。。,00DFDA7042(70℃)、(70～90℃)。00HEDP,,,,。YHSL,,。:;;:TQ085.4　　:A　　:1003-5214(2004)08-0621-05StudyofaNewTypeofSolidScaleInhibitorZHANGGui-cai,ZHANGQiao-liang,WUBai-zhi,GEJi-jiang＊,RENShang(CollegeofPetroleumEngineering,UniversityofPetroleum,Dongying257061,Shandong,China)Abstract:Toinhibitscaleformationinoilwell,anewtypeofsolidscaleinhibitor,whichcanbehungtooilpumpinwellbore,wasmademainlyfromphosphonictypeinhibitors.Theexperimentsshowedthat,hydroxyethylidene-diphosphonicacid(HEDP),awidelyusedscaleinhibitorinoilfield,canbeselectedasscaleinhibitingmaterialinsolidscaleinhibitorforitsgoodscaleinhibitingpropertyandthermalstability.Bycomparingthemeltingpointandsolubilityindieseloil,PLASTIC00andDFDA7042wereselectedasconsolidatingagentforlowtemperatureandhightemperaturesolidscaleinhibitorrespectively.WhenthesolidscaleinhibitorwasmadeonlyfromPLASTIC00andHEDP,HEDPwoulddissolvequicklyinwaterbecauseitwasnotwellconsolidatedbyPLASTIC00duetotheirgreatdifferenceinpolarity.Ifthepolaritywascontrolledbyamphiproticpolymer,asolidscaleinhibitorwithgoodslowreleasingabilitycanbeproduced.Keywords:solidscaleinhibitor;phosphonictypeinhibitors;slowreleasingabilityFoundationitem:Grantedbythestatescientificandtechnologicalresearchprojectofthe10thfive-yearplan(2002BA312B)　　,()()。,。2090-[1],21,()、、:2003-10-31:“”(2002BA312B):(1966-),,,(),,,E-mail:[e-mail]。:,:0546-8396084,E-mail:[e-mail]。DOI:10.13550/j.jxhg.2004.08.018[2～8]。,、、,:(1)(、、)[9],(7000/t);(2)。、,,,。1　、、、、、EDTA,AR。、。ZJ-X8/320()、SYB-1()、V-33()、ICP2000()。2　2.1　SY/T5673—93“”。2.2　,0.6MPa,,。,,,,,:=-×100%2.3　,。。1、2。:(1),;(2)2mm,2,,1;(3)2.5L/h、70℃V()∶V()=3∶7;(4),ICP2000()。1　Fig.1　Floodingequipmentforsolidscaleinhibitorevluating2　Fig.2　Enlargeddrawingofsolidscaleinhibitorandmould3　3.1　3.1.1　防垢性能评价,、、(),,。,MIC(95%)。MIC,(MIC)。7,,1。1　①Table1　Scaleinhibitingpropertymeasuringforscaleinhibitor/%2mg/L5mg/L10mg/L15mg/L20mg/L(HEDP)95.3894.0199.2599.8799.55(ATMP)90.8891.9299.1597.50DETPMP79.3295.0099.9697.1799.012--1,2,4-(PBTCA)89.3090.4596.2193.3293.84DPSC32.1066.7692.2587.2195.17HPA88.0293.6892.6093.2389.64EDTMP93.9691.2291.66　　①。·622·精细化工　FINECHEMICALS　　　　　　　　　　　　　　21　,HEDP2mg/L,95%,HEDP。3.1.2　耐热性能考察,。HEDP,200℃,,,3。,,HEDP。3　HEDPFig.3　InfraredspectrumofHEDPbeforeandafterbeingheated3.2　。,。()、()、。。3.2.1　塑料的熔点6,2。2　6Table2　MeltingpointofplasticsDFDA7042EPS30RDMDY115800DGDA6098QPR01/℃130170130108～126130130,。3:(1),00,;(2),DFDA7042、DMDY1158、DGDA6098、QPR01,;(3),EPS30R,。。3.2.2　塑料在油中的溶解性能。0#,。3.2.2.1　70℃00、EPS30R、QPR01DMDY115870℃,4。4　70℃Fig.4　Plasticssolvingpropertyindieselat70℃:,00、EPS30R、QPR01DMDY11584;003,52.39%。EPS30RQPR01DMDY1158,EPS30R19.41%,QPR0116.84%,DMDY1158,6%。,,。,,。,,,。00、EPS30R、QPR01DMDY1158,0070℃,DMDY115870℃,EPS30RQPR0170℃。3.2.2.2　90℃00、DFDA7042、ESP30R、QPR01、DMDY1158DGDA609890℃·623·8,:,5。5　90℃Fig.5　Plasticssolvingpropertyindieselat90℃,0090℃,DFDA70424。,:(1)70℃,00;(2)70～90℃,DFDA7042。。3.3　HEDPpH=7～8,HEDP。HEDP、00,1∶1。70℃,HEDP,HEDP,6。6　(Ⅰ)HEDPFig.6　CollectivedissolutionofHEDPfromsolidscaleinhibitor(Ⅰ)atdifferentfloodingtime6,HEDP,60h,HEDP20%。HEDP,,,7。7　Fig.7　Frofileofsolidscaleinhibitorafterbeingflooded,,,,,。,,,,。:,,,,。YHSL。YHSL00,,。,,8。8　HEDPFig.8　ρ(HEDP)inproducingfluidfromsolidscaleinhibitoratdifferentfloodingtime,,HEDP,6.7mg/L,,HEDP。HEDP,HEDP,9。·624·精细化工　FINECHEMICALS　　　　　　　　　　　　　　21　9　(Ⅱ)HEDPFig.9　CollectivedissolutionofHEDPfromsolidscaleinhibitor(Ⅱ)atdifferentfloodingtime,120h,6%。4　(1)HEDP2mg/L,95%,,HEDP,。(2),00DFDA7042(70℃)、(70～90℃)。(3)00HEDP,,,。(4)YHSL,,。:[1]　,.[J].,1987,9(6):67-75.[2]　RonaldJPowell,ArlandFischer,RichDGdanski.Encapsulatedscaleinhibitorforuseinfracturingtreatments[R].SPE30700,1995.[3]　PowejjRJ,GdanskiRD,McCabeMA.Controlled-releasedscaleinhibitorforuseinfracturingtreatments[R].SPE2899,1995.[4]　Al-ThuwainiJS,SaudiARAMCO,BurrBJ.Encapsulatedscaleinhibitortreatment[R].SPE37790,1997.[5]　HughMalcolmBourne,PeterArneRead.Welltreatment[P].US:5964291,1999.[6]　ThomasCharlesKowalski,RobertWaynePike.Microencapsulatedoilfieldchemicals[P].US:5922652,1999.[7]　GeneHZaid,BethAnnwolf.Welltreatmentpellets[P].US:6135207,2000.[8]　HsuJF,Al-ZainAK.EncapsulatedscaleinhibitortreatmentsexperienceintheGhawarField,SaudiArabia[R].SPE60209,2000.[9]　　,,.-[J].,1983,12(10):599-604.300t/a,300t/aGemini———,,。,、、,、、。、、、、。,45%,542,1.16g/mL(25℃),(0.1%)30～35mN/m(25℃),。:0411-84664051(:13604253083),:。(),、、,,。、、、,、、、,。,。:0411-84672072(:13840907008),:。()·625·8,: