Page 216 - 201905

第 36 卷第 5 期 精 细 化 工 Vol.36, No.5
201 9 年 5 月 FINE CHEMICALS May 2019

油田化学品与油品添加剂
抗温抗盐微球合成、优化及性能评价

1
1*
2
2
1
鲍文博 ，卢祥国 ，刘义刚 ，张云宝 1,2 ，李彦阅 ，郐婧文
〔1. 东北石油大学 提高油气采收率教育部重点实验室，黑龙江 大庆 163318；2. 中海石油（中国）有
限公司，渤海石油研究院，天津 300452〕
摘要：以丙烯酰胺（AM）、丙烯酸（AA）、2-丙烯酰胺-2-甲基丙磺酸（AMPS）和 -甲基苯乙烯（-MSt）为聚
合单体，采用二次反相乳液聚合法制备了抗温抗盐聚合物微球 AMPST，并优化了微球的合成工艺。利用 FTIR、
GPC、光学显微镜、SEM、TG、流变分析仪以及岩心封堵实验对 AMPST 微球进行了结构表征与性能测试。结
果表明，温度和 AMPS 含量与微球初始粒径大小密切相关，温度和引发剂含量决定了微球的膨胀倍数。在水化
3
温度为 65 ℃，地层模拟水矿化度为 2.893710 mg/L，合成温度为 50 ℃，AMPS 用量为 15%（以水相中水的
质量为基准，下同），合成的 AMPST-8 微球初始粒径中值为 2.01 m，水化 240 h 后粒径中值为 18.45 m，膨胀
倍数为 8.18。AMPST-8 微球表面光滑，比表面大，呈聚集态；岩心封堵实验表明，AMPST-8 微球在岩心内水化
膨胀 7 d 后，残余阻力系数为 8.4，封堵率 88.00%，高于其他现场提供的微球。中试产品 ZS-2 微球岩心内水化
膨胀 7 d 后，残余阻力系数 7.8，封堵率 87.24%。
关键词：反相乳液聚合；正交实验；缓膨和封堵效果；机理分析；油田化学品与油品添加剂
中图分类号：TE39; TE357; TQ318 文献标识码：A 文章编号：1003-5214 (2019) 05-0984-09

Synthesis, Optimization and Performance Evaluation of
Temperature-resistant and Salt-tolerant Microspheres

1*
1
2
1,2
BAO Wen-bo , LU Xiang-guo , LIU Yi-gang , ZHANG Yun-bao ,
1
2
LI Yan-yue , KUAI Jing-wen
〔1. Key Laboratory of Enhanced Oil Recovery, Ministry of Education, Northeast Petroleum University, Daqing 163318,
Heilongjiang, China; 2. CNOOC (China) Co., Ltd., Tianjin Branch Institute of Petroleum Exploration and Development
Company, Tianjin 300452, China〕
Abstract: Temperature-resistant and salt-tolerant polymer microspheres (AMPST) were prepared by
inverse emulsion polymerization using acrylamide (AM), acrylic acid(AA), 2-acrylamide-2-methyl propane
sulfonic acid (AMPS) and -methyl styrene (α-MSt) as monomers. And the synthesis process of
microspheres were optimized. The structure and performance of AMPST microspheres were characterized
by FTIR, GPC, optical microscope, SEM, TG, rheological analyzer and core plugging experiments. The
results showed that temperature and AMPS content were closely related to the initial particle size of
microspheres, and temperature and initiator content determined the expansion ratio of microspheres. When
3
the hydration temperature was 65 ℃ and the salinity of simulated formation water was 2.8937×10 mg/L,
reaction temperature 50 ℃, dosage 15% of AMPS(based on the quality of water in aqueous phase, the
same below), the average initial particle size of AMPST-8 microspheres was 2.01 μm, and 18.45 μm after
240 hours of hydration, with an expansion ratio of 8.18. Furthermore, AMPST-8 microspheres had smooth
surface, large specific surface exhibited an aggregate state. Core plugging experiments showed that the
residual resistance coefficient of AMPST-8 microspheres was 8.4 and the plugging rate was 88.00% after 7
days of hydration expansion in the core, higher than other microspheres provided on site. After 7 days of
hydration expansion, the residual resistance coefficient and plugging rate of pilot plant product, ZS-2

收稿日期：2018-12-03; 定用日期：2019-03-21; DOI: 10.13550/j.jxhg.20180880
基金项目：国家“十三五”科技重大专项（2016ZX05058-003-010）
作者简介：鲍文博（1995—），男，硕士生。联系人：卢祥国（1960—），男，教授，博士生导师，E-mail：luxiangg2003@aliyun.com。