Chemical Industry and Engineering Progress ›› 2023, Vol. 42 ›› Issue (5): 2464-2474.DOI: 10.16085/j.issn.1000-6613.2022-1246

• Materials science and technology • Previous Articles     Next Articles

Biosynthesis and EOR application of magnetic Fe3O4 NPs

LIU Yulong(), YAO Junhu, SHU Chuangchuang, SHE Yuehui()   

  1. College of Petroleum Engineering, Yangtze University, Wuhan 430100, Hubei, China
  • Received:2022-07-04 Revised:2022-08-23 Online:2023-06-02 Published:2023-05-10
  • Contact: SHE Yuehui

磁性Fe3O4纳米颗粒的生物合成及其在提高采收率中的应用

刘宇龙(), 姚俊虎, 舒闯闯, 佘跃惠()   

  1. 长江大学石油工程学院,湖北 武汉 430100
  • 通讯作者: 佘跃惠
  • 作者简介:刘宇龙(1995—),男,博士研究生,研究方向为生物纳米解堵增注和提高采收率。E-mail:yulong13220@163.com
  • 基金资助:
    国家自然科学基金(51634008);国家重大科技专项(2017ZX05009-004)

Abstract:

Nano Fe3O4 has attracted extensive attention in the field of petroleum development in recent years due to its unique properties, such as superparamagnetism, small size, low toxicity, and easy separation under external magnetic fields. This paper reviews the biosynthesis and enhanced oil recovery (EOR) application of magnetic Fe3O4 NPs. First, the biosynthesis of magnetite by microorganisms, plant extracts and animals is introduced. Microbial synthesis mainly includes two processes: adsorption of metal ions and reduction mineralization. The synthesis by plant extracts depends on water-soluble metabolites, such as polyphenols, alkaloid and citric acid. Magnetite is also found in animals, which use it to sense the earth’s magnetic field to determine direction. Then, the EOR mechanism and application of Fe3O4 NPs are described. Fe3O4 NPs can form stable emulsion by wrapping oil droplets, reduce interfacial tension, change wettability, improve wave efficiency by improving the viscosity of displacement fluid and reducing the viscosity of heavy oil, and generate separation pressure with wedge structure. Under this mechanism, EOR applications of magnetic Fe3O4 are summarized. Magnetic Fe3O4 NPs is environmentally friendly and has a good application effect in EOR, which has a broad development prospect.

Key words: magnetic Fe3O4 nanoparticles, biosynthesis, enhanced oil recovery (EOR) environment friendly

摘要:

纳米Fe3O4具有独特的性质,如超顺磁性、尺寸小和低毒性,且易在外磁场下分离,近几年来在石油开发领域受到广泛的关注。本文综述了磁性Fe3O4纳米颗粒(NPs)的生物合成及其在提高采收率(EOR)的应用,首先介绍了微生物、植物提取液和动物合成磁铁矿:微生物的合成主要包括两个过程,一是对金属离子的吸附,二是还原矿化作用;植物提取液的合成依赖水溶性的一些代谢物,如多酚、生物碱和柠檬酸等的作用;动物体中也发现了磁铁矿,可以感应地磁场从而判断方向。然后阐述了Fe3O4 NPs的EOR机理和应用:Fe3O4 NPs可以将油滴包裹形成稳定的乳液,降低界面张力,改变润湿性,通过增加驱替流体的黏度和降低重油的黏度来提高波及效率以及楔形结构产生分离压力。在此作用下,总结了磁性Fe3O4在EOR方面的应用。

关键词: 磁性Fe3O4纳米颗粒, 生物合成, 提高采收率, 环境友好

CLC Number: 

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