高效率制备双亲性纳米粒子及采油应用前景分析
Efficient preparation of amphiphilic particles and analysis of their application prospects in oil recovery
史磊 1马志 1闫海俊 2臧龙 3曹杰 3宋颖 1郭锦棠3
作者信息
- 1. 华北油田公司工程技术研究院,河北任丘 062552
- 2. 华北油田公司工程技术研究院,河北任丘 062552;天津大学化工学院,天津 300072
- 3. 天津大学化工学院,天津 300072
- 折叠
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.
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 asymmet-ric 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.
关键词
Janus纳米SiO2/pickering乳液/提高采收率Key words
Janus nano-SiO2/pickering emulsion/enhanced oil recovery引用本文复制引用
出版年
2025
NETL
NSTL
万方数据