Page 218 - 《精细化工》2022年第5期

第 39 卷第 5 期 精 细 化 工 Vol.39, No.5
2022 年 5 月 FINE CHEMICALS May 2022

油田化学品与油品添加剂
一种两亲聚合物稠油降黏剂的制备及性能评价

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费东涛 ，郭继香 ，孙建芳 ，曹丽丽 ，孟 霖 ，夏海容
〔1. 中国石油大学（北京） 非常规油气科学技术研究院，北京 102249；2. 中国石化石油勘探开发研究
院，北京 100083〕
摘要：以溴代烷烃、聚乙烯亚胺、丙烯酰胺、2-丙烯酰胺-2-甲基丙磺酸为原料，采用自由基聚合法制备了一系
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列两亲聚合物稠油降黏剂 PBP。利用 FTIR、 HNMR、GPC 对其进行了表征。采用显微镜、视频旋转滴张力仪、
流变仪、填砂管驱油实验考察了 PBP-12（12 为溴代烷烃的碳原子数）对稠油的乳化降黏及驱油能力。在 PBP-12
质量分数为 1.00%，油水质量比为 7∶3 的条件下，春风油田稠油黏度由未加降黏剂前的 4753 mPa·s 降至
85 mPa·s，降黏率为 98.21%，油水界面张力由未加降黏剂前的 11.59 mN/m 降至 0.06 mN/m。110 ℃老化 24 h
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后降黏率为 93.75%；矿化度为 1.45×10 mg/L 条件下，降黏率为 93.50%；在 50 ℃、矿化度为 4.84×10 mg/L 条
件下，质量分数为 0.50%的 PBP-12 溶液黏度为 56 mPa·s，高于市售部分水解聚丙烯酰胺溶液的黏度（32 mPa·s）。
注降黏剂驱能在水驱基础上提高采收率 37.45%。结果表明，PBP-12 具有较好的耐温耐盐性，在高矿化度条件
下具有更好的水相增稠能力，并且其溶液可以通过降低稠油黏度和扩大波及体积来提高稠油的采收率。
关键词：稠油降黏；两亲聚合物；降黏剂；提高采收率；春风油田；油田化学品
中图分类号：TE39；TE357；TE345 文献标识码：A 文章编号：1003-5214 (2022) 05-1072-09

Synthesis and performance evaluation of an amphiphilic
polymer viscosity reducer for heavy oil

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FEI Dongtao , GUO Jixiang , SUN Jianfang , CAO Lili , MENG Lin , XIA Hairong
（1. Unconventional Petroleum Research Institute, China University of Petroleum, Beijing 102249, China; 2. Sinopec
Petroleum Exploration and Production Research Institute, Beijing 100083, China）
Abstract: A series of amphiphilic polymer viscosity reducers PBP were synthesized using bromoalkanes,
polyethyleneimine, acrylamide and 2-acrylanmido-2-methylpropanesulfonic acid as raw materials by free
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radical polymerization, and characterized by FTIR, HNMR and GPC. The effects of PBP-12 (12 is the
carbon atom number of bromoalkane) on emulsification, viscosity reduction and oil displacement of heavy
oil were investigated by using microscope, video spinning drop tensiometer and rheometer. When the mass
fraction of PBP-12 was 1.00% and the oil-water mass ratio was 7∶3, the heavy oil with viscosity of
4753 mPa·s in Chunfeng oilfield could be reduced to 85 mPa·s, and the viscosity reduction rate was 98.21%.
Meanwhile, the oil-water interfacial tension was reduced from 11.59 mN/m to 0.06 mN/m. The viscosity
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reduction rate was 93.75% after aging at 110 ℃ for 24 hours. The mineralization degree was 1.45×10
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mg/ L, the viscosity reduction rate was 93.50%. At 50 ℃ and 4.84×10 mg/L, the viscosity of PBP-12
solution with mass fraction of 0.50% was 56 mPa·s, higher than of commercial partially hydrolyzed
polyacrylamide solution (32 mPa·s). The viscosity reducer flooding could increase the oil recovery by
37.45% on the basis of water flooding. The results showed that PBP-12 had good temperature and salt
resistance and exhibited better aqueous thickening capability under high mineralization condition, and its
solution could improve the recovery by reducing the heavy oil viscosity and expanding the sweep volume.

收稿日期：2021-09-02; 定用日期：2021-12-02; DOI: 10.13550/j.jxhg.20210885
基金项目：国家重点研发计划（2018YFA0702400）；中石化科技攻关项目（P19018-2）
作者简介：费东涛（1993—），男，博士生，E-mail：fdt305@163.com。联系人：郭继香（1965—），女，教授，电话：010-89732129，
E-mail：guojx002@163.com。