Synthesis and performance of YM series demulsifiers in high-efficiency separation of SAGD heavy oil production liquid

被引：0
|
作者：
Wang Y. [1 ]
Yang J. [1 ]
Hu C. [1 ]
Xu X. [1 ]
机构：
[1] International Joint Research Center of Green Energy Chemical Engineering, School of Chemical Engineering, East China University of Science and Technology, Shanghai
来源：
Huagong Jinzhan/Chemical Industry and Engineering Progress | 2022年 / 41卷 / 01期
关键词：
Heavy oil; Interfacial tension; Produced liquid separation; Steam assisted gravity drainage(SAGD); Synthesis; Zeta potential;
D O I：
10.16085/j.issn.1000-6613.2021-0115
中图分类号：
学科分类号：
摘要：
A series of novel YM demulsifiers, synthesized by polyether(YM), maleic anhydride(MA), sodium styrene sulfonate(SSS), and acryloxyethyltrimethylammonium chloride(DAC), were applied for SAGD produced liquid separation of Xinjiang heavy oil. The structures of the products were characterized by FTIR、1H NMR, and GPC. The effect of products on the separation of SAGD produced liquid was investigated by interfacial tension, zeta potential, and backscattered light intensity analysis. The results showed that ester groups and sodium benzenesulfonate anionic groups in YMA and YMB weakened the binding strength between dispersion asphaltenes and reduced interfacial film strength and interfacial tension, which lead to a reduction of oil-water interfacial tension. The cationic group of acyloxyethyltrimethylammonium chloride in YMB dropped the absolute value of zeta potential of SAGD produced water. The backscattered light intensity of SAGD produced liquid decreased by 1.36%, 4.52% and 5.63%, respectively when adding YM, YMA and YMB, which meant YMB demulsifier had the best effect on reducing the stability of SAGD produced liquid. The YMC obtained by the combination of YMB and acetic acid had a better dehydration effect. Under the optimized separation conditions of SAGD produced liquid, a satisfactory separation result could be achieved with the addition of YMC. © 2022, Chemical Industry Press Co., Ltd. All right reserved.
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页码：382 / 390
页数：8
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