摘要
室内以丙烯酰胺(AM)、2-丙烯酰胺-2-甲基丙磺酸(AMPS)、单体A和单体B为单体,合成了相渗改善剂XYT-1。确定最优合成条件如下:乳化剂m(TX-10)∶m(Span-80)为1∶5、乳化剂加量为6%、单体质量分数为35%、反应温度为45℃、反应时间为7 h、引发剂加量为0.12%、pH值为7.5。抗温性能实验结果表明,相渗改善剂体系在90℃下的表观黏度为23.3 mPa·s;抗盐性能实验结果表明,相渗改善剂体系在矿化度10 000 mg·L^(-1)下的表观黏度为11.9 mPa·s;抗剪切性能实验结果表明,连续剪切210 min,相渗改善剂体系的表观黏度保留率约为80%,静置180 min后,表观黏度保留率可恢复至约90%;耐久性实验结果表明,添加稳定剂后相渗改善剂体系在77 d后表观黏度保留率为71.9%,且保持稳定,未添加稳定剂体系在77 d后表观黏度保留率仅为32.9%,且呈继续下降趋势;岩心驱替实验结果表明,相渗改善剂体系具有良好的选择性堵水作用,对油田可持续发展具有重要意义。
We synthesized phase permeability modifier XYT-1 by using acrylamide(AM),2-acrylamide-2-methylpropionionic acid(AMPS),monomer A,and monomer B as monomers.The optimal synthesis conditions can be determined as follows: the emulsifier m(TX-10)∶m(Span-80) of 1∶5,the emulsifier dosage of 6%,the monomer mass fraction of 35%,the reaction temperature of 45 ℃,the reaction time of 7 h, the initiator dosage of 0.12%,and the pH value of 7.5.The experimental results of temperature-tolerance performance show that the apparent viscosity of the phase permeability modifier system is 23.3 mPa·s at 90 ℃.The experimental results of salt-resistance performance show that the apparent viscosity of the phase permeability modifier system is 11.9 mPa·s at the salinity of 10 000 mg·L^(-1).The experimental results of shear-resistance performance show that the apparent viscosity retention rate of the phase permeability modifier system is about 80% after continuous shear for 210 min, and the apparent viscosity can be restored to about 90% after static for 180 min.The experimental results of durability performance show that the apparent viscosity retention rate of the phase permeability modifier system with stabilizer is 71.9% after 77 d, and then remains stable;while the apparent viscosity retention rate of the system without stabilizer is only 32.9% after 77 d, and then continues to decline.The experimental results of core flooding show that the phase permeability modifier system has good selective water-plugging effect, which is of great significance for the sustainable development of oilfield.
作者
廖乐军
王克强
白茹
刘永峰
陈亚联
白田民
何里
王松
LIAO Lejun;WANG Keqiang;BAI Ru;LIU Yongfeng;CHEN Yalian;BAI Tianmin;HE Li;WANG Song(Xianyang Chuanqing Xinyuan Engineering Technology Co.,Ltd.,Xianyang 712000,China;School of Chemistry and Environmental Engineering,Yangtze University,Jingzhou 434023,China)
出处
《化学与生物工程》
CAS
2023年第2期59-64,共6页
Chemistry & Bioengineering
基金
国家科技重大专项(2017ZX05023)。
关键词
相渗改善剂
合成
选择性指数
渗透率
稳定性
phase permeability modifier
synthesis
selectivity index
permeability
stability
