微泡沫钻井液用高温稳泡剂TFS的制备及性能评价  

HIGH-TEMPERATURE FOAM STABILIZER FOR MICRO FOAM DRILLING FLUID

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)

机构地区：[1]中石化胜利石油工程有限公司钻井液技术服务中心,山东东营257078

出　　处：《精细石油化工》2024年第5期1-5,共5页Speciality Petrochemicals

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.

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 

分 类 号：TE254.3[石油与天然气工程—油气井工程]