高效率制备双亲性纳米粒子及采油应用前景分析

摘要针对纳米粒子在驱替过程中降低油水界面能力差和乳化能力差的问题,通过pickering乳液界面保护法非对称修饰纳米SiO₂,成功制备具有双亲性结构的Janus-纳米SiO₂。通过验证,亲油改性剂十六烷基三甲氧基硅烷成功引入,几乎所有的纳米SiO₂在制备的过程都被石蜡成功保护,成功制备双亲性Janus-SiO₂。该方法是一种可大批量高效简单制备Janus-纳米SiO₂的方法,为油田领域大批量应用需求提供基础。Janus-纳米SiO₂比亲水纳米SiO₂和亲油纳米SiO₂的乳化能力更强,稳定性更高,所以它的携油能力更强;在油藏高含水情况下,Janus-纳米SiO₂形成的乳液液滴浮在水相上,可随水的运动被带出,提高油藏采收率;Janus-纳米SiO₂在较低的浓度下即可形成稳定的乳液层,有利于节约成本,有油田领域应用前景。

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	史磊
	马志
	闫海俊
	臧龙
	曹杰
	宋颖
	郭锦棠

关键词： Janus纳米SiO₂ pickering乳液提高采收率

Abstract： In view of the poor ability of nanoparticles to reduce the oil-water interface and emulsify in the displacement process, Janus nano-SiO₂ with amphiphilic structure was successfully prepared by asymmetric modification of nano-SiO₂ through pickering lotion interface protection method. Through verification, the lipophilic modifier hexadecyl trimethoxysilane was successfully introduced, and almost all of the nano-SiO₂ was successfully protected by paraffin during the preparation process, and amphiphilic Janus nano-SiO₂ was successfully prepared. By this method, Janus nano-SiO₂ can be efficiently and simply prepared in large quantities, providing a basis for large-scale application needs in the oil field. Janus nano-SiO₂ has stronger emulsifying ability and stability compared to hydrophilic and lipophilic nano-SiO₂, so its oil carrying capacity is stronger. In the case of high water cut in the reservoir, the lotion droplets formed by Janus nano-SiO₂ float on the water phase and can be brought out with the movement of water to improve the oil recovery of the reservoir; Janus nano-SiO₂ can form a stable lotion layer at a lower concentration, which is conducive to cost saving and has application prospects in the oil field.

Keywords： Janus nano-SiO₂ pickering emulsion enhanced oil recovery

Received 2023-05-16;

Corresponding Authors: 郭锦棠,教授,jtguo@tju.edu.cn Email: jtguo@tju.edu.cn

About author: 史磊(1981—),男,副高级工程师,现从事油田化学方面的研究。

引用本文:

史磊, 马志, 闫海俊, 臧龙, 曹杰, 宋颖, 郭锦棠.高效率制备双亲性纳米粒子及采油应用前景分析[J]. 化学工业与工程, 2025,42(1): 41-46

SHI Lei, MA Zhi, YAN Haijun, ZANG Long, CAO Jie, SONG Ying, GUO Jintang.Efficient preparation of amphiphilic particles and analysis of their application prospects in oil recovery[J]. Chemcial Industry and Engineering, 2025,42(1): 41-46

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