摘要
通过对非离子纤维素进行疏水缔合改性后,与磺酸盐刚性单体接枝聚合制备了高温稳泡剂TFS,考察了其合成工艺条件.结果表明:优化反应条件为反应温度80℃,引发剂加量035g,非离子纤维素加量105 g,疏水单体加量26g,抗高温单体加量28g,反应时间6h;通过加入表面修饰剂对高温稳泡剂TFS进行表面修饰,形成了可在水中即时分散,快速溶解的稳泡剂.评价实验表明:高温稳泡剂TFS的相对分子质量为(126~130)×10^(4),能够抗温150℃;高温老化后仍然具有良好的悬浮稳定性;饱和NaCl污染下具有良好的流变性,能够满足低压深井钻进的需求.
The high-temperature foam stabilizer TFS was synthesized by hydrophobic association modification of non-ionic cellulose,and grafting rigid monomers of sulfonic acid salt.The synthesis process conditions were also explored.The results showed that the optimized reaction conditions were reaction temperature of 80℃,initiator dosage of 0.35 g,non-ionic cellulose dosage of 10.5 g,hydrophobic monomer dosage of 2.6 g,high-temperature resistant monomer dosage of 2.8 g,and reaction time of 6 h.By adding surface modifiers to the high-temperature foam stabilizer TFS,a foam stabilizer that could be instantly dispersed and quickly dissolved in water was formed.The evaluation experiment shows that the high-temperature foam stabilizer TFS has a relative molecular weight of 1.26-1.3 million and can withstand temperatures up to 150℃.It still has good suspension stability after high-temperature aging.Under saturated NaCl pollution,it has good rheological properties and can meet the requirements of low-pressure deep well drilling.
作者
杨倩云
宋翔远
于雷
刘振东
王伟
邱春阳
Yang Qianyun;Song Xiangyuan;Yu Lei;Liu Zhendong;Wang Wei;Qiu Chunyang(Drilling Fluid Technology Service Center of SINOPEC Shengli Petroleum Engineering Co.,Ltd.,Dongying 257078,Shandong,China)
出处
《精细石油化工》
CAS
2024年第5期1-5,共5页
Speciality Petrochemicals
关键词
高温稳泡剂
非离子纤维素
表面修饰
悬浮稳定性
抗温性
流变性
high temperature foam stabilizer
non-ionic cellulose
surface modification
suspension stability
temperature resistance
rheological properties
