摘要
选用丙烯酸(AA)、2-丙烯酰胺基-2-甲基丙磺酸(AMPS),N,N-二甲基丙烯酰胺(DMAM)为共聚单体,采用水溶液聚合法制得一种油井水泥降失水剂FC-1。采取单因素变量实验法分别对聚合条件进行考察,优选出最佳反应条件,并对FC-1进行水泥浆性能评价。实验结果表明,FC-1最佳合成条件为:单体质量分数为20%,n(AMPS)∶n(DMAM)∶n(AA)=3∶1∶1,引发剂加量为0.2%～0.3%,反应pH值为8～9,反应温度为70～80℃、反应时间5～7h;FC-1性能评价结果表明,FC-1降失水性能优良且最高耐受温度可达200℃,对水泥浆基本无缓凝作用,与外加剂——高温缓凝剂(DZH-2)配伍性好。
A fluid loss control additive,FC-1,is synthesized via aqueous copolymerization of acrylic acid（AA）,2-acrylamido-2-methyl-propane sulphonic acid（AMPS）and N,N-dimethyl acrylamide（DMAM）.Single variable factor method was utilized to examine the polymerization conditions for optimization and evaluate the properties of FC-1 in cementing slurry.The results show that the optimum conditions is that solid content is 20% mole ratio of AA,AMPS and DMAM is 3∶1∶1,dosage of initiator is 0.2%～0.3%,pH is 8～9,reaction temperature is 70～80℃and reaction period is 5～7 h.FC-1 possesses excellent fluid loss control property and can resist the temperature as high as 200℃.Besides,FC-1 has no retarding influence on cementing slurry and has good compatibility with the retarder of retarder for high temperature（DZH-2）.
作者
朱兵
ZHU Bing(Shelfoil Petroleum Equipment ＆ Services Company Limited,Dezhou,Shandong 253005,China)
出处
《化学世界》
CAS
CSCD
2018年第10期646-651,共6页
Chemical World
基金
德州大陆架石油工程技术有限公司总经理创新基金(No.GCY-2-221)资助项目
关键词
油井水泥
降失水剂
共聚物
无缓凝
水泥浆性能
well cement
fluid loss control additive
copolymer
no retarding
cementing slurry property
