改性Fe3O4纳米颗粒用于泡稳定:增强石油回收的机制和应用
Dandan Yin1,2, Judong Qiu1,2, Dongfeng Zhao1,2
1College of Petrochemical Engineering & Environment, Zhejiang Ocean University, Zhoushan 316021, China.
Nanomaterials (Basel, Switzerland)
|March 12, 2025
概括
超偏磁铁氧化物纳米粒子 (Fe3O4NP) 为增强石油回收泡稳定提供了可持续的解决方案. 这些磁纳米粒子被修改以提高泡稳定性和油调动,实现了17.01%的回收增长.
科学领域:
- 材料科学 材料科学 材料科学
- 化学工程是化学工程的重要组成部分.
- 石油工程是石油工程中的一个.
背景情况:
- 传统的纳米颗粒 (NP) 用于增强石油回收 (EOR) 泡稳定,这给回收和污染带来了挑战.
- 超偏磁铁氧化物 (Fe3O4) NP为可持续的EOR泡稳定提供了磁性可回收的替代品.
研究的目的:
- 合成和优化疏水Fe3O4@SiO2纳米颗粒,以提高EOR中的泡稳定性.
- 为了评估修改磁性NP在调动剩余油中的性能.
主要方法:
- Fe3O4 NPs被合成并使用四乙烯正酸盐 (TEOS) 用SiO2涂层.
- 用多德三甲西兰修饰表面增强了NP的疏水性,以接触角测量为特征.
- 使用发泡剂 (α-olefin sulfonate) 和修改的NP来评估泡的稳定性,并测量排水半衰期.
- 在多个循环中测试了纳米粒子回收和可重复使用性.
- 微观移位实验评估了剩余油的调动.
主要成果:
- 最佳修改的Fe3O4@SiO2NP实现了77.01°的接触角.
- 使用修改NP和0.2%重量%α-olefin硫酸盐的泡系统显示排水半衰期为452秒.
- 三个回收周期被发现是纳米粒子再利用的最佳选择.
- 与未经修改的NP相比,通过修改的NP稳定的泡增加了17.01%的剩余油回收.
结论:
- 表面修饰的超偏磁性Fe3O4@SiO2NP是EOR的有效泡稳定剂.
- 磁性回收和NP的可重复使用性提高了EOR过程的可持续性.
- 修改后的磁性NP显著改善了挑战剩余油和的调动.
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