聚合物降滤失剂PAAAA的合成及其性能评价  

Synthesis and property evaluation of polymer fluid loss additive PAAAA

作　　者：胡正文[1] 任庭飞 邓小刚[1] 马丽华[1] 朱继林 Hu Zhengwen;Ren Tingfei;Deng Xiaogang;Ma Lihua;Zhu Jilin(College of Chemistry and Chemical Engineering,Southwest Petroleum University,Chengdu Sichuan 610500,China)

机构地区：[1]西南石油大学化学化工学院,四川成都610500

出　　处：《石油化工》2020年第4期378-384,共7页Petrochemical Technology

摘　　要：以丙烯酰胺(AM)、2-丙烯酰胺基-2-甲基丙磺酸(AMPS)、丙烯酸(AA)及11-丙烯酰氧基十一烷基-二甲基-羟乙基溴化铵(ADAB)为单体,2,2′-偶氮二异丁基脒二盐酸盐为引发剂,通过水溶液聚合制备了聚合物降滤失剂PAAAA。利用FTIR及~1H NMR对PAAAA的结构进行了表征,通过单因素法优化了合成条件。实验结果表明,适宜的反应条件为:n(AM)∶n(AMPS)∶n(AA)∶n(ABAD)=21.8∶21.8∶54.4∶2,单体总用量20%(w),引发剂加量0.16%(w),反应温度55℃,反应时间5 h。当PAAAA含量为1.5%(w)时,饱和盐水基浆的中压滤失量和高温高压滤失量分别为3.6,16.0 mL。经200℃老化16 h后,淡水基浆的中压滤失量和高温高压滤失量分别为9.0,26.8 mL。PAAAA具有良好的抗温抗盐性能。A polymer fluid loss additive PAAAA was synthesized by aqueous solution polymerization,with acrylamide(AM),2-acrylamide-2-methylpropanesulfonic acid(AMPS),acrylic acid(AA),and(11-acryloyloxyundecyl)dimethyl-(2-hydroxyethyl)ammonium bromide(ADAB)as monomers,2,2′-azobis(2-methylpropionamidine)dihydrochloride as initiator.The structure of PAAAA was characterized by FTIR and 1H NMR.Synthesis conditions were optimized by single factor method.The results showed that the optimum conditions were:n(AM)∶n(AMPS)∶n(AA)∶n(ADAB)21.8∶21.8∶54.4∶2,the total monomer amount 20%(w),the initiator concentration 0.16%(w),reaction temperature 55℃,and reaction time 5 h.When PAAAA content was 1.5%(w),themediumpressure fluid loss(FLAPI)and high temperature high pressure fluid loss(FLHTHP)of saturated-brine based drilling fluid were 3.6 mL and 16.0 mL,respectively.After aging treatment at 200℃for 16 h,the FLAPI and FLHTHP of fresh water based drilling fluid were 9.0 mL and 26.8 mL,respectively.The PAAAA had excellent temperature resistance and salt tolerance.

关 键 词：降滤失剂 钻井液 长链季铵盐 抗高温 抗盐 

分 类 号：TQ317[化学工程—高聚物工业]