聚氧乙烯基型降滤失剂SJ-1的合成与性能评价  

Synthesis and Evaluation of Fluid Loss Additive SJ-1 for Polyoxyethylene Type

作　　者：全红平[1] 明显森[1] 黄志宇[1] 鲁红升[1] 刘大海 段春兰 

机构地区：[1]西南石油大学化学化工学院,四川成都610500 [2]四川仁智油田技术服务股份有限公司,四川绵阳621000

出　　处：《精细化工》2013年第5期570-574,共5页Fine Chemicals

摘　　要：采用2-丙烯酰胺基-2-甲基丙磺酸(AMPS)、丙烯酰胺(AM)与具有大分子侧链聚氧乙烯基(C2H4O)n的烯丙基聚氧乙烯醚(APEG)三元共聚得到钻井液用降滤失剂SJ-1,并对其进行了性能评价。通过单因素实验优化得到最佳合成方案为:单体质量分数为15%,反应温度控制在60℃,引发剂质量分数为0.2%,n(AM)∶n(AMPS)∶n(APEG)=14∶5∶1。通过红外光谱表征可知,所合成的聚合物结构和预计的结构一致。性能评价表明,所合成的聚合物具有较好的抗温能力(200℃),在盐质量分数为30%的盐水泥浆中仍具有较好的降失水能力。The 2-acrylamido-2-methyl-propanesulfonic acid （ AMPS ）, acrylamide （ AM ） and allyl polyoxyethylene ether（APEG） containing molecular side chain polyoxyethylene （C2H40）n have been involved in the copolymerization of this filtrate reducer for drilling fluid SJ - 1, the performance of which has been evaluated. A series of experimental factors were also discussed and the optimum scheme of copolymerization was obtained, that is, monomer mass is 15%, temperature of reaction is 60 ℃, dosage of initiator is 0. 2%, molar ratio of monomer n （ AM ） ： n （AMPS） ： n （APEG） is 14：5 ： 1. The results of infrared characterization have confirmed that the structure of the product in question is consistent with the original design. Moreover, this polymer has shown good temperature resistance （200 ℃） and salt resistance（salt mass fraction up to 30% ）.

关 键 词：降滤失剂 聚合物 失水量 抗温 抗盐 油田化学品与油品添加剂 

分 类 号：TE254.4[石油与天然气工程—油气井工程]