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第 35 卷第 10 期 精 细 化 工 Vol.35, No.10
2018 年 10 月 FINE CHEMICALS Oct. 2018
油田化学品与油品添加剂
驱油用超支化聚合物的合成及性能
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陈文娟 1,2 ,张 健 1,2 ,朱玥珺 1,2 ,王秀军 1,2* ,胡 科 1,2 ,王 洪
(1. 海洋石油高效开发国家重点实验室,北京 100027;2. 中海油研究总院有限责任公司,北京 100027;
3. 北京化工大学 材料科学与工程学院,北京 100029)
摘要:以聚环糊精(HCD)为母核,丙烯酰胺(AM)及甲基丙烯酰乙基磺基甜菜碱(BTAM)为接枝单体,在
硝酸铈铵引发下,通过水相自由基聚合,制备了一种具有球形母核及两性离子功能链段的超支化聚合物
(HCD-HPAM-BTAM)。考察了聚合时间、引发剂用量、HCD 用量、水解烘干温度、BTAM 用量对聚合物溶
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液黏度的影响。采用 FTIR 和 HNMR 对聚合物结构进行了表征,并对其溶解、增黏、抗剪切、抗盐及抗老化性
能进行了评价。得到的最佳聚合条件为:聚合时间 5.5 h、引发剂 60 mg、HCD 20~30 mg、烘干温度 120 ℃、BTAM
200 mg。在总矿化度为 9374.13 mg/L 的矿化水中,聚合物 HCD-HPAM-BTAM 溶解时间基本小于 50 min。
2000 mg/L 的聚合物溶液黏度可达 31.2 mPas,3500 r/min 剪切 20 s 后黏度保留率高达 80%,老化 90 d 黏度保留
率为 63%,均优于未改性的部分水解聚丙烯酰胺(HPAM)。
关键词:超支化聚合物;丙烯酰胺;驱油剂;抗剪切;油田化学品
中图分类号:TE357 文献标识码:A 文章编号:1003-5214 (2018) 10-1751-07
Synthesis and Properties of a Hyperbranched Polymer for oil Flooding
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CHEN Wen-juan , ZHANG Jian , ZHU Yue-jun , WANG Xiu-jun 1,2* , HU Ke , WANG Hong
(1. State Key Laboratory of Offshore Oil Exploitation, Beijing 100027, China; 2. CNOOC Research Institute Co., Ltd,
Beijing 100027, China; 3. College of Materials Science and Engineering, Beijing University of Chemical Technology,
Beijing 100029, China)
Abstract: A hyperbranched polymer (HCD-HPAM-BTAM) with a spherical parent nucleus and
zwitterionic functional segments was synthesized by aqueous free radical polymerization of
polycyclodextrin (HCD), acrylamide (AM) and methacryloxyethyl sulfobetaine (BTAM) in the presence of
ceric ammonium nitrate. The effects of polymerization time, initiator dosage, HCD dosage, hydrolysis
drying temperature and BTAM dosage on the polymer solution viscosity were investigated. The structure of
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the obtained polymer was characterized by FTIR and H NMR, and the solubility, thickening property, shear
resistance, salt tolerance and anti-aging property were evaluated. The results indicated that the optimum
polymerization conditions were obtained as follows: polymerization time of 5.5 h, initiator dosage of 60 mg,
HCD dosage of 20~30 mg, hydrolysis drying temperature of 120℃, BTAM dosage of 200 mg. In the
mineralized water (9374.13 mg/L), the basic dissolution time of polymer HCD-HPAM-BTAM was less than
50 min. The viscosity of 2000 mg/L polymer solution could reach 31.2 mPa·s, and the viscosity retention
rate after shearing by the Waring stirrer level 1 for 20 s was as high as 80%. The viscosity retention rate
after 90 days aging was 63%. These properties of polymer HCD-HPAM-BTAM were better than those of
the partially hydrolyzed polyacrylamide (HPAM).
Key words: hyperbranched polymer; acrylamide; oil-flooding agent; shear-resistance; oilfield chemicals
Foundation items: National Natural Science Foundation of China Youth Science Foundation(21607174);
National Science and Technology Major Project (2016ZX05025-003)
收稿日期:2017-08-31; 定用日期:2018-01-12; DOI: 10.13550/j.jxhg.20170706
基金项目:国家自然科学基金青年科学基金项目(21607174);国家科技重大专项项目(2016ZX05025-003)
作者简介:陈文娟(1988—),女,博士。联系人:王秀军(1985—),男,高级工程师,E-mail:wangxj89@cnooc.com.cn。