纳米尺度下液体的流动机理研究进展

发布时间：2018-01-20 08:22

本文关键词： 页岩油纳米尺度流动分子动力学模拟滑移　出处：《断块油气田》2017年05期 　论文类型：期刊论文

【摘要】：页岩储层的储集空间主体为纳米级孔隙-裂隙系统,仅在局部发育微米—毫米级孔隙。随着以页岩油气、致密油气为代表的非常规油气资源成为全球油气勘探开发的新热点,纳米尺度下的液体流动机理研究引起了国内外学者的广泛关注。通过大量的文献调研,对纳米尺度下液体的流动特征进行了系统总结,分析了目前常用的物模实验、分子动力学模拟和直接Monte Carlo模拟等研究手段的基本原理和优缺点,并从实验和模拟两大方面介绍了纳米孔隙内液体流动机理研究的最新进展及成果。在此基础上,探讨了纳米尺度下液体流动机理研究对页岩油勘探开发的启示,指出分子动力学模拟方法是开展页岩储层纳米级孔隙系统内原油流动机理研究的必然选择,同时需要进一步推进纳米尺度流动的实验方法研究。
[Abstract]:The main reservoir space of shale reservoir is nanometer porosity-fracture system, and only micrometer pore is developed in the local area, along with shale oil and gas. Unconventional oil and gas resources represented by dense oil and gas have become a new hot spot in global oil and gas exploration and development. The study of liquid flow mechanism at nanometer scale has attracted extensive attention of domestic and foreign scholars. The characteristics of liquid flow in nanoscale are summarized systematically, and the commonly used physical model experiments are analyzed. The basic principle, advantages and disadvantages of molecular dynamics simulation and direct Monte Carlo simulation. The latest progress and achievements in the study of liquid flow mechanism in nano-pore are introduced from two aspects of experiment and simulation. On this basis, the enlightenment of the study on the mechanism of liquid flow in nano-scale to the exploration and development of shale oil is discussed. It is pointed out that molecular dynamics simulation method is an inevitable choice to study the flow mechanism of crude oil in shale reservoir nanoscale pore system, and it is necessary to further advance the experimental study of nano-scale flow.
【作者单位】：中国石化石油勘探开发研究院;
【基金】：国家重点基础研究发展计划(973计划)项目“中国东部古近系陆相页岩油富集机理与分布规律”(2014CB239101)
【分类号】：P618.13
【正文快照】： 0引言目前,世界石油工业正在由常规油气资源向非常规油气资源跨越。以页岩油气、致密油气为代表的非常规油气资源逐渐成为全球油气勘探开发的新热点[1-3]。与常规油气藏相比,泥页岩、致密砂岩、致密碳酸盐岩等非常规储集层具有特殊的微纳米级孔喉-裂隙系统,因而表现出强烈的非

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