脲醛树脂的合成及其在堵水中的应用  

The Systhesis of UF Resin and Its Application in Water Plugging

作　　者：郭越 王姗姗[2] 陈斌[3] 

机构地区：[1]锦州碧海石油化工有限公司,锦州121007 [2]中国石油大学,北京102249 [3]西南石油大学研究生部,成都610500

出　　处：《重庆科技学院学报（自然科学版）》2009年第1期76-78,84,共4页Journal of Chongqing University of Science and Technology：Natural Sciences Edition

摘　　要：以尿素和甲醛为主要原料合成了脲醛树脂,分析了甲醛和尿素的摩尔比、尿素加入方法、改性剂加量等对树脂中的游离甲醛含量以及树脂稳定性的影响,优化了合成条件。以氯化铵为固化剂,六次甲基四胺为固化速度调节剂对合成的脲醛树脂进行固化。通过性能评价,发现脲醛树脂的固化时间在较大范围内可以调节;固化后抗压强度高;在地层液体中具有低的溶解率;采用加入增孔剂的方法成功的使脲醛树脂具有了选择性。This paper synthesizes the UF resin taking urea and formaldehyde as the main raw material. By changing the ratio of formaldehyde to urea, dividing the addition of urea to several fractions and adding modifier, these factors＇ effect on the stability and free formaldehyde assaying of UF resin are got. At the same time, the reaction condition is optimized. Taking NH4Cl as curing agent and（CH2）6 N4 as curing velocity conditioning agent, the UF resin is cured. By performance evaluation, we find that the UF resin had accommodation curing time, high intensity and low solubility in formation fluid. With the method of adding pore-agent, the UF resin is successfully transformed to be a kind of selective water plugging agent.

关 键 词：脲醛树脂 堵水 游离甲醛 固化 

分 类 号：TQ322[化学工程—合成树脂塑料工业] TE353[石油与天然气工程—油气田开发工程]