摘要
近年来,纳米颗粒在三次采油领域逐渐受到了广泛关注.针对目前纳米颗粒驱油机理及发展现状认识不清等问题,系统分析了近年来在纳米颗粒驱油方面的研究进展,总结出纳米颗粒的纳米尺寸效应、降低界面张力、改变润湿性、分离压力、乳化作用、防止沥青质絮凝、催化裂解等驱油机理;展望了纳米驱油材料在高含水、低渗透、致密油及页岩油等油藏类型中的应用潜力;指出纳米颗粒在石油开发过程中面临的挑战和发展前景.该研究可为纳米颗粒在提高采收率方面的进一步研究及规模应用提供参考及依据.
Abstract
In recent years,nanoparticles have gradually received widespread attention in tertiary oil recovery.At present,the mechanism and development status of nanoparticle are not well understood.For this reason,the paper systematically analyzes research progress of nanoparticle flooding in recent years and summarizes the mechanisms of oil displacement by nanoparticles,including nano-size effects,reduction of interfacial tension,alteration of wettabili-ty,disjoining pressure,emulsification,prevention of asphaltene flocculation,and catalytic cracking.It also explores the significant application potential of nanoparticle-driven oil displacement materials in various reservoir types,such as high water cut reservoir,low permeability reservoir,tight oil reservoir,and shale oil reservoir.The paper identifies challenges and development prospects for nanoparticles in oil development and provides references and basis for fur-ther research and large-scale application of nanoparticles in enhanced oil recovery.
维普
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