辽河油田稠油井筒降凝剂的研制  

STUDY ON POUR POINT DEPRESSANT FOR LIAOHE CRUDE OIL IN WELLBORE

作　　者：李荣强[1] 张军丽[1] 陈春想 刘静静[1] 梁博士 

机构地区：[1]黄淮学院化学化工系,河南驻马店463000

出　　处：《精细石油化工》2017年第2期13-16,共4页Speciality Petrochemicals

基　　金：国家自然科学基金(U1204210)

摘　　要：以辽河油田高蜡稠油为处理对象,用甲苯为溶剂,以顺丁稀二酸酐(M)、苯乙烯(S)、甲基丙烯酸十八烷基酯(OA)、甲基丙烯酸十六烷基酯(HA)为原料,采用溶液自由基聚合反应合成了原油降凝剂。该降凝剂的最佳合成条件为:单体最佳配比为n(M)∶n(S)∶n(OA)∶n(HA)=3∶3∶0.8∶0.2,引发剂过氧化二苯甲酰(BPO)质量分数为1.0%,反应温度70℃,反应时间7h。在原油中加入质量分数为0.8%的降凝剂可以使原油的凝固点降低7℃。Pure point depressant（PPD）was synthesized by free-radical copolymerization of maleic anhydride（M）,styrene（S）,Octadecyl methacrylate（OA）and hexadecyl methacylate（HA）in toluene solution,which was applied to reduce pure point of the heavy crude oil of Liaohe Oil field with the characteristic of high waxy and high viscous.The optimum condition for synthesis of PPD was studied.The best molar monomer rate was n（M）∶n（S）∶n（OA）∶n（HA）=3∶3∶0.8∶0.2.BPO as initiator was 1.0%（mass faction of total monomer mass）.The reaction temperature and the reaction time of copolymerization was 70℃,and 7h,respectively.The pure point of heavy oil can be reduced by 7 ℃ when 1% of the PPD was added.

关 键 词：高含蜡原油 四元共聚物 合成 降凝剂 

分 类 号：TE869[石油与天然气工程—油气储运工程]