高相对分子质量反相乳液耐温抗盐聚合物合成研究  

Synthesis of High Molecular Weight Inverse Emulsion Polymer Resistant to Temperature and Salt

作　　者：雷齐玲[1] 

机构地区：[1]中国石油大港油田公司采油工艺研究院,天津300280

出　　处：《非常规油气》2015年第5期45-48,共4页Unconventional Oil & Gas

摘　　要：在概述反相乳液聚合物合成进展的基础上,对提高其相对分子质量和改进耐温性进行了研究。通过优选耐温单体提高产物耐温性,通过优选合成条件提高产物相对分子质量。选用丙烯酸(AA)、丙烯酰胺(AM)和2-丙烯酰氨基-2-甲基丙磺酸(AMPS)为水溶性单体,以液体石蜡为油相,以过硫酸盐为引发剂,采用反相乳液共聚法合成了AA/AM/AMPS反相乳液耐温抗盐聚合物。试验发现,乳化剂最佳用量为8%,最佳油水比为1∶1,最佳引发温度为20℃,在此条件下合成的反相乳液耐温抗盐聚合物相对分子质量可达1500×104。在90℃矿化度为32868mg/L的水中,7天内产物黏度保留率较常规聚丙烯酰胺高出59%;溶解时间仅为常规聚丙烯酰胺的1/7,具有较好的耐温抗盐性能和溶解性。研究结果对现阶段反相乳液聚合物性能的提高具有借鉴作用。Summing up the progress of inverse emulsion polymer synthesis, enhancing molecular weight and high temperature resistance was probed into in this paper. Temperature resistance of product was enhanced by selecting temperature resistant monomer, and molecular weight of product by optimizing synthesis conditions. Selecting acrylic acid （AA）, acrylamide （AM）, 2- acrylamido-2-methylpropanc sulfonic acid （AMPS） as water-soluble monomer, liquid paraffin as oil phase, the persulfate as initiator, inverse emulsion copolymerization was used for synthesizing AA / AM / AMPS inverse emulsion poly- mer resistant to temperature and salt. Test showed that the optimum amount of emulsifier was 8%, the best oil-water ratio was 1. 1： 1, the best initiation temperature was 20℃, and the molecular weight of inverse emulsion polymer resistant to tem- perature and salt could reach 1500×104. In water of 90℃ and 32868mg/L salinity, the product viscosity retention rate was 59% higher than conventional polyacrylamide within 7 days, but dissolution time was only 1/7 of conventional polyacrylam- ide, with better temperature and salt resistant performance and dissolution. The results could be reference to improvement of the property of inverse emulsion polymer at the present stage.

关 键 词：高相对分子质量 反相乳液 共聚物 聚合物 合成 

分 类 号：TE357.46[石油与天然气工程—油气田开发工程] TQ317[化学工程—高聚物工业]