新型抗高温苯丙胶乳的室内研究  

Laboratory Research on New High Temperature Styrene Acrylic Latex

作　　者：汪晓静[1] 王其春[1] 刘伟[1] 徐春虎[1] 

机构地区：[1]中国石化石油工程技术研究院

出　　处：《钻井液与完井液》2013年第6期48-51,94-95,共4页Drilling Fluid & Completion Fluid

基　　金：国家科技重大专项课题"海相油气井固井完井技术"(2011ZX05005-006-04)

摘　　要：针对传统的苯丙胶乳适用温度较低,不能满足高温固井需要的问题,采用预乳化工艺和接枝共聚的方法,以苯乙烯、丙烯酸丁酯为主要原料,2-丙烯酰胺-2-甲基丙磺酸、甲基丙烯酸羟乙酯、甲基丙烯酸二甲基氨基乙酯为改性单体,合成了一种新型抗高温苯丙胶乳。考察了软硬单体配比、改性单体配比、乳化剂加量、引发剂加量、合成温度等因素对苯丙胶乳性能的影响,确定了最佳的合成参数。室内评价了苯丙胶乳的抗高温性能和综合性能。结果表明,改性后的苯丙胶乳抗高温能力达到130℃,并且具有良好的降失水、防气窜性能;苯丙胶乳水泥浆的综合性能满足固井施工要求。Temperature stability of the traditional styrene acrylic latex is unsatisfied.A high temperature tolerant styrene acrylic latex was synthesized using ST,BA as the main materials,AMPS,HEMA,DMAM as modification monomers by pre-emulsion and graft copolymerization methods.The proportion between soft and hard monomer,the proportion between modification monomers,the quantity of emulsifying agent and initiator,reactions temperature were studied to determine the optimum condition. Test shows that modified tyrene-acrylic latex with the temperature stability near 130℃ can control the fluid loss and improve gas channeling of slurry.

关 键 词：苯丙胶乳 胶乳水泥浆 改性 高温 

分 类 号：TE256.6[石油与天然气工程—油气井工程]