AM/AA/AMPS/NPAB四元共聚物驱油剂的合成及性能研究  

SYNTHESIS AND PROPERTIES OF AM/AA/AMPS/NPAB AS OIL-REPLACING AGENT

作　　者：苟绍华[1,2] 周利华[2] 叶仲斌[1,2] 尹婷[2] 蒋文超[2] 马永涛[2] 杨成[2] 

机构地区：[1]西南石油大学油气藏地质及开发工程国家重点实验室,四川成都610500 [2]西南石油大学化学化工学院,四川成都610500

出　　处：《精细石油化工》2014年第1期19-24,共6页Speciality Petrochemicals

基　　金：四川省科技支撑计划项目(2012FZ0130);国家自然科学基金项目资助(51274172)

摘　　要：以丙烯酰胺(AM)、丙烯酸(AA)、2-丙烯酰胺基-2-甲基丙磺酸(AMPS)和1-烯丙氧基-4-壬基苯(NPAB)为单体,采用过硫酸铵-亚硫酸氢钠为引发体系,制备了一种新型水溶性共聚物,并对该共聚物进行了红外和扫描电镜表征。适宜的共聚条件为:m(AM)∶m(AA)∶m(AMPS)∶m(NPAB)=6∶4∶0.3∶0.02、pH=7、w(引发剂)=0.29%、单体总浓度20%、温度40℃。研究表明:2g/L的共聚物溶液表观黏度高达716.3mPa·s;在120℃时,共聚物溶液黏度保留率达到35.71%;MgCl2和CaCl2含量为2g/L时,共聚物溶液黏度保留率高达125.3和126.3mPa·s。该共聚物溶液可提高模拟原油的采收率。A novel water-soluble copolymer of poly（acrylamide-co-acrylic acid-co-sodium 2-（acrylamido）-2-methylpropane-1-sulfonate-co-1-（allyloxy）-4-nonylbenzene） （AM/AA/AMPS/PNAB） was prepared by using （NH4）2S2Os-NaHSO3 system with acrylamide（AM）,acrylic acid（AA）,2-（acrylamido）-2-methylpropane-1-sulfonate（AMPS） and 1-（allyloxy）-4-nonylbenzene （PNAB） as raw materials.The optimal conditions were investigated as follows：m（AM） ∶ m（AA） ∶ m（AMPS） ∶ m（PNAB）=6 ∶ 4 ∶ 0.3 ∶ 0.02,pH was 7,initiator was 0.4％,concentration of monomers was 20％ and temperature was 40 ℃.The structure of synthesized copolymer was confirmed by FTIR and SEM.It was found that the apparent viscosity of 2 g/L copolymer solution was 716.3 mPa · s and the retention value of the apparent viscosity could achieve 35.71％ at 120 ℃.The retention value of the apparent viscosity in 2 g/L copolymer solution could be up to 125.3 at 2 g/L concentration of CaCl2 and 126.3 at 2 g/L concentration of MgCl2 respectively.Simulated crude recovery could be improved by the copolymer solution.

关 键 词：1-烯丙氧基-4-壬基苯 2-丙烯酰胺基-2-甲基丙磺酸 耐温 抗盐 驱油剂 

分 类 号：TE357.46[石油与天然气工程—油气田开发工程]