聚丙烯酰胺反应性微凝胶的制备及其在石油开采中的应用  

SYNTHESIS OF ACRYLATE REACTIVE MICROGELS AND IT'S APPLICATION IN THE FILED'S EXPLOITATION

作　　者：吴蒙[1] 魏发林[2] 王启宝[1] 邓生富[1] 

机构地区：[1]中国矿业大学(北京)化学与环境工程学院,北京100083 [2]中国石油勘探开发研究院采油所,北京100083

出　　处：《精细石油化工》2011年第6期6-9,共4页Speciality Petrochemicals

摘　　要：实验以油酸山梨醇酯(司班80)、聚氧乙烯山梨糖醇酐单硬脂酸酯(吐温60)、N-羟甲基丙烯酰胺、丙烯酰胺(AM)等为原料,制备了一种反应性微凝胶。确定了稳定的丙烯酰胺反相微乳液的体系组成:(m(司班80)∶m(吐温60)∶m(环己烷)∶m(AM)∶m(H2O)=6.18∶14.42∶67.04∶4.12∶8.24))。以先聚合后改性的方法制备了聚丙烯酰胺反应性微凝胶,并以XRD、NMR和SEM对目标产物的分子结构、烯氢含量和微观形貌进行了表征。优化改性条件为:N-羟甲基丙烯酰胺1.3g,pH=1,温度80℃,时间4h。目标产物为球形或类球形,粒径为200～400nm,其力学性能明显优于传统交联剂N,N-亚甲基双丙烯酰胺。Reactive mocrogels which can be used to replace the traditional cross-linker N,N-methylene- bis-acrylamide, and solve the cross-linking product＇s poor mechanical properties have been prepared. After determining the composition of the stable acrylamide inverse microemulsion, the polyacrylamide microgels were synthesized, and then the polyacrylamide reactive microgels was prepared by adding a chemical. XRD, NMR and SEM ware used to analyze the molecular structure, the content of ene hydrogen and the microstructure. Then, the properties of the product in application were analyzed. The optimal stable acrylamide inverse microemulsion consisted of 6. 18% Span 80, 14.42% Tween 60, 67.04% cyclohexane, and 4.12% acrylamide and 8.24% water. The optimum modification conditions were determined as follows. 12 3 g N-hydroxyl methyl acrylamide, pH= 1, reaction temperature 80℃ and reaction time 4 h. The shape of the product was spherical or kind of spherical. The particle sizes were between 200 nm and 400 nm. The mechanical performance of the product which was crosslinked by the polyacrylamide reactive microgels was significantly superior to the traditional cross-linking products.

关 键 词：反应性微凝胶 反相微乳液 聚丙烯酰胺 

分 类 号：TE357.462[石油与天然气工程—油气田开发工程]