表面活性剂对酸化自增稠聚合物ADD的性能影响  

Effect of surfactants on the properties of acidizing self-thickening polymer ADD

作　　者：全红平 李欢[3] 黄志宇[1,2] 蒋思龙 甄学乐[1,2] 吴艳婷 QUAN Hong-ping;LI Huan;HUANG Zhi-yu;JIANG Si-long;ZHEN Xue-le;WU Yan-ting(Oil&Gas Field Applied Chemistry Key Laboratory of Sichuan Province,Chengdu 610500,China;College of Chemistry and Chemical Engineering,Southwest Petroleum University,Chengdu 610500,China;No.2 Oil Production Plant of PetroChina Xinjiang Oilfield Company,Karamay 834008,China)

机构地区：[1]油气田应用化学四川省重点实验室,四川成都610500 [2]西南石油大学化学化工学院,四川成都610500 [3]中国石油新疆油田分公司采油二厂,新疆克拉玛依834008

出　　处：《应用化工》2022年第8期2285-2288,2294,共5页Applied Chemical Industry

基　　金：四川省科技计划资助(2019YJ0315);油气田应用化学四川省重点实验室开放基金(YQKF202001,YQKF201401)。

摘　　要：表面活性剂可以改变酸液自增稠聚合物溶液性能,提升酸液增稠能力,以丙烯酰胺(AM)、N-(3-二甲氨基丙基)甲基丙烯酰胺(DMAPMA)和十八烷基二甲基烯丙基氯化铵(DMAAC-18)为原料合成了一种酸化自增稠剂(ADD),研究表面活性剂的加入对自增稠聚合物增稠性能及残酸流变特性的影响。结果表明,十二烷基硫酸钠(SDS)在30℃,5%(以自增稠聚合物质量计)的加量下,当CaCO_(3)加量为32.85 g时,可将自增稠酸液峰值粘度从429 mPa·s提高到513 mPa·s。ADD-SDS残酸在600 s^(-1)剪切速率下,其粘度由99 mPa·s提升到182 mPa·s,同时具有更大的动力学模量。并且ADD-SDS残酸液在加入2.94倍水后,粘度降低至10 mPa·s以下,具有更好的返排能力。Surfactants can change the performance of acid self-thickening polymer solution and improve the thickening ability of acid solution.An acidified self-thickening agent(ADD)was synthesized from acrylamide(AM),N-(3-dimethylaminopropyl)methylacrylamide(DMAPMA)and octadecyl dimethyl allyl ammonium chloride(DMAAC-18),the effects of surfactant on the thickening properties of self-thickening polymer and the rheological properties of spent acid were studied.The results showed that the peak viscosity of self-thickening acid solution could be increased from 429 mPa·s to 513 mPa·s,when the dosage of sodium dodecyl sulfate(SDS)was 32.85 g at 30℃and 5%(based on the mass of self-thickening polymer).At the shear rate of 600 s^(-1),the viscosity of ADD-SDS spent acid increases from 99 mPa·s to 182 mPa·s,and has greater kinetic modulus.After adding 2.94 times water,the viscosity of ADD-SDS spent acid solution is reduced to less than 10 mPa·s,which has better flowback ability.

关 键 词：酸液自增稠聚合物 转向酸 增稠能力 表面活性剂 

分 类 号：TQ423.3[化学工程] TE[石油与天然气工程]