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1、疏水缔合聚合物减阻剂的合成及流变性能崔强1，张金功1*，薛涛2(1．西北大学地质学系/大陆动力学国家重点实验室，陕西西安710069；2．延长油田股份有限公司杏子川采油厂，陕西延安717400)摘要：采用疏水单体FW-12(物质的量比2:1的丙烯酸十八酯与甲基丙烯酸十六烷基酯混合物)与丙烯酰胺(AM)、丙烯酸（AA）、2-丙烯酰胺基-2-甲基丙磺酸（AMPS）聚合得到水溶性疏水缔合聚合物减阻剂FHAPAM。研究了聚合过程放热特点，找出含疏水基团时聚合反应热量变化基本规律，用流变仪测定了FHAPAM水溶
2、液的流变性能；芘探针实验探究了溶液的极性及变化规律；室内减阻实验测试其减阻性能。结果表明：FHAPAM聚合温度受疏水单体摩尔分数影响较大，存在明显的平台区，FHAPAM水溶液受剪切作用表现出强触变性；溶液极性随疏水单体摩尔分数的增加而降低，且I1/I3的比值存在突变点；FHAPAM耐温性强于普通聚丙烯酰胺（PAM）；疏水单体摩尔分数不同，储能模量（G'）、损耗模量（G''）均表现出特殊性。FHAPAM低浓度时，减阻效果优于胍胶，其展现出作为滑溜水压裂液良好的应用前景。关键词：疏水缔合；流变性能；减阻性
3、能中图分类号：TE39；TE348文献标识码：ASynthesisandRheologicalPropertiesofHydrophobicAssociatedPolymerDragReducingAgentCuiQiang1,ZhangJingong1*,XueTao2(1.DepartmentofGeology,NorthwestUniversity/StateKeyLaboratoryofContinentalDynamics,Xi'an,710069,Shaanxi,China;2.Apric
4、otOilProductionFactoryofYanchangOilFieldCo.,Ltd,Yan'an717400,Shaanxi,China)Abstract:UsinghydrophobicmonomerFW-12(octadecylacrylate/2-propenoicacid,2-methyl，hexadecylester,molarratio2:1)andacrylamide(AM),acrylicacid(AA),2-acrylamide-2-methylpropanesulfon
5、icacid(AMPS)obtainedwater-solublehydrophobicassociatedpolymerdragreducingagentFHAPAM.Thepaperfocusesonexothermiccharacteristicsofpolymerizationprocess,explorespolymerizationreactionheatchangebasicruleinhydrophobicgroup,studieshydrophobicalassociationofF
6、HAPAMaqueoussolutionwithrheometer;Pyreneprobeexperimentexplorespolarityandchangeregularityofthesolution;discussesdragreductionperformancethroughanalysisofdragreductionmechanism.TheresultsshowthatFHAPAMisgreatlyimpactedbyhydrophobicmonomercontent,polymer
7、izationheatisdifferentfromordinarypolyacrylamide,withobviousplatformarea,FHAPAMsolutiondemonstratesstrongthixotropywithincreasedhydrophobicmonomercontent;Solutionpolaritydecreaseswithhydrophobicmonomercontentincrease,andthereismutationalsiteinI1/I3ratio
8、;FHAPAMtemperaturetoleranceisstrongerthanordinarypolyacrylamide(PAM);fordifferenthydrophobicmonomercontents,storagemodulus(G')andlossmodulus(G")showparticularity.Whendrug-reducingagentFHAPAMremainsinlowconcentration,itsdrugreduct
