Comment on mesoscopic flow theory in porous media
-
摘要: 多孔介质细-微观流动理论是揭开纳微米级孔隙介质流动的神秘钥匙，随着世界石油工程技术的进步，非常规油气藏已成为石油界开发的主攻领地，非常规油气储层存在大量的纳米级孔隙，现有的达西与非达西渗流宏观统计方法不能揭示细微孔隙中流体非线性流动机理和有效动用机制。急切需开展多孔介质细-微观流动理论研究，为非常规油气开发提供理论基础。本文归纳了该方面（包括作者在内）的研究成果，首先从理论分析、实验研究和数值模型三个方面概述了当前多孔介质细微观流动的研究现状，重点围绕纳微米尺度流体流动界面作用与细观力学特性关系及表征、细观-宏观网络仿真模拟、细微尺度流体（油/水、气/水）流动细观动力学机制及数学模型等关键问题展开论述。在此基础上介绍了当前对细微米尺度流体流动界面作用与细观力学特性研究情况、细微观尺度流体非线性流动机理、构建反映微观力作用下的细微尺度流动数学模型并形成网络仿真模拟方法的重要性。将为非常规油气开发过程中揭示影响流动细观成因，进一步阐明不同条件下的动用机理，确定高效开发方法提供指导，同时促进渗流力学学科的发展，具有重要的理论和现实意义。Abstract: The theory of meso-micro flow in porous media is a "mysterious key" to unlock the flow of nano-micron porous media. With the advancement of world petroleum engineering technology, unconventional oil and gas reservoirs are main targets for the development of the petroleum industry, which are distributed with a large number of nano-scale pores. For the problem that the macroscopic statistical methods base on Darcy and non-Darcy flow cannot be used to reveal the nonlinear flow mechanism and effective mechanism of multiphase fluids in nano-micron porous media as present. This paper summarizes the research results in this area (including the author). It summarizes the current research status of fine and micro flow in porous media from three aspects: theoretical analysis, experimental research and numerical model. Focus on key issues such as the relationship and characterization of nano-micro-scale fluid flow interface and micro-mechanical properties, meso-macro network simulation, micro-scale fluid (oil/water, gas/water) flow, meso-dynamic mechanism and mathematical
-
Key words:
- porous media /
- meso-microscopic flow /
- micro force /
- hydrodynamic /
- pore network model
-
点击查看大图
计量
- 文章访问数: 181
- HTML全文浏览量: 46
- PDF下载量: 13
- 被引次数: 0
下载:
