N,N-二甲基丙烯酰胺对AMPS类降失水剂性能影响研究  

Study on N,N-Dimethacrylamide on the performance of cement slurry fluid loss reducer

作　　者：肖尧 陶瑞东 张超[3] 赵腾 孙延华 李小林 凌勇 伊万宁 朱智勇 李茜 肖洁 

机构地区：[1]渤海钻探工程有限公司第二固井公司,天津300280 [2]渤海钻探工程有限公司第三钻井公司,天津300280 [3]大港油田公司采油一厂,天津300280 [4]大港油田公司采油三厂,天津300280 [5]渤海钻探工程有限公司泥浆技术服务公司,天津300280

出　　处：《石油化工应用》2017年第12期119-122,125,共5页Petrochemical Industry Application

摘　　要：本文在2-丙烯酰胺基-2-甲基丙磺酸/丙烯酰胺/丙烯酸(AMPS/AM/AA)三元共聚物类油井水泥降失水剂中引入单体N,N-二甲基丙烯酰胺(DMAA),考察了DMAA对降失水剂相对分子质量、降失水性能、稠化时间、分散性能、耐温性能的影响,结果表明在AMPS/AM/AA三元共聚物中引入不同比例的DMAA后,随着DMAA比例的提高,共聚物的聚合度降低、控制失水性能减弱;水泥浆在80℃~100℃"倒挂"现象缓解,130℃~150℃"倒挂"现象加剧;降失水剂的分散效果降低;水泥浆在高温条件下的稳定性提高。Through introducing the monomer N,N-Dimethacrylamide(DMAA)in the cement loss-reducing agent of 2-acrylamido-2-methylpropanesulfonic acid/acrylamide/acrylic acid(AMPS/AM/AA)terpolymer,this paper analyzes the effects DMAA on the molecular weight,the filter loss of cement slurry, the thickening time, the decentralized performance, the temperature performance. It shows that after introducing different proportions of DMAA in the AMPS/AM/AA terpolymer, with the increase of DMAA's proportion,the degree of polymer-ization of the copolymer is lowered, control of the filter loss of cement slurry performance is weakened. Cement slurry in the 80 ℃~100 ℃, the "upside down" phenomenon to ease, in 130 ℃~150 ℃, the "upside down" phenomenon intensified.The dispersion effect of the water loss agent is reduced, and the stability of the cement slurry in high temperature is improved.

关 键 词：降失水剂 共聚物 DMAA 水泥浆性能 

分 类 号：TE256.6[石油与天然气工程—油气井工程]