现代油气渗流力学体系及其发展趋势  

Modern system of multiphase flow in porous media and its development trend

作　　者：姚军[1] 孙海[1] 李爱芬[1] 杨永飞[1] 黄朝琴[1] 王月英[1] 张磊[1] 寇建龙 谢昊君[1] 赵建林[1] 严侠[1] 张庆福[1] 任晓霞[1] 韩文成[1] 刘丕养[1] 朱光普[1] 宋文辉[1] 隋宏光[1] 安森友 王振[1] 刘文正 张旭[1] 李正 

机构地区：[1]中国石油大学(华东)油气渗流研究中心,青岛266580

出　　处：《科学通报》2018年第4期425-451,共27页Chinese Science Bulletin

基　　金：国家自然科学基金(51490654;51234007;51504276;51504277;51674280);高等学校学科创新引智计划(B08028);中央高校基本科研业务费专项资金(17CX02008A);国家油气重大专项(2016ZX05061;2016ZX05060)资助

摘　　要：油气渗流是油气藏开采的科学核心问题,以连续介质假设和达西方程为基础的传统渗流力学在常规油气资源开发中发挥了重要作用.近年来,非常规油气藏成为油气行业勘探开发的主要阵地,其开发理论和技术尤其是渗流问题也成为学术界研究的热点问题.非常规油气藏其岩石多孔介质具有明显的多尺度特征,尺度差异达到6个数量级之多,而且采用大规模的水平井分段压裂开发模式,储层应力强烈作用.因此,传统的油气渗流理论已无法准确描述非常规油气藏的流动特征.实质上,非常规油气资源的开发过程是一个典型的多场作用下的多流动模式的多相流体(油气水)在多尺度多孔介质的流动过程.为此,本文提出了"多场作用下的多流动模式的多相流体在多尺度多孔介质中流动动力学体系"的现代渗流力学体系的概念,并从纳微尺度油气流动模拟、流动模拟的多尺度升级、非常规油气藏的宏观流动模拟、大尺度缝洞碳酸盐岩油藏的流动模拟以及油气渗流物理模拟等方面系统阐述了其研究现状及发展趋势.Fluid flow in porous media is the key scientific problem in the development of oil and gas reservoirs. The traditional mechanics of fluid flow in porous media which based on the continuum hypothesis and Darcy＇s law plays an important role in developing conventional oil and gas resources. In recent years, unconventional reservoirs are drawing more and more attention all over the world, therefore the development theory and technology, especially the corresponding flow mechanisms have become the hot research issues. The unconventional reservoirs exhibit distinct multiscale characteristics, even with six orders of magnitude difference. In addition, the application of massive multi-stage hydraulic fracturing can induce strong stress interactions. Therefore, the traditional theory of fluid flow in porous media cannot accurately describe the flow characteristics in unconventional reservoirs. In essence, the development of unconventional oil and gas resources involves multiphase fluids（e.g. oil, water and gas） flow in multi-scale porous media with multi-field coupling and various flow patterns. Therefore, the concept of modern system of multiphase flow in porous media is proposed, which means multiphase fluids flowing in multi-scale porous media with multi-field coupling and various flow patterns. The research status and development tendency are reviewed from the aspects of：（1） micro-and nanoscale oil and gas flow simulation;（2） upscaling for reservoir simulation,（3） macroscale flow simulation of unconventional oil and gas reservoirs;（4） simulation of flow in large scale fractured and vuggy carbonate reservoirs and（5） physical simulation of hydrocarbon transport in porous media. More specifically, in nanoscale the density functional theory and molecular simulation method can be used to study the interfacial phenomena to understand the hydrocarbon transport behavior in nanopores and provide key parameters for mesoscale flow simulation. The current study of nanoscale simulation mainly focuses on

关 键 词：现代油气渗流力学体系 纳微尺度 尺度升级 非常规油气藏 缝洞型碳酸盐岩 物理实验 

分 类 号：TE312[石油与天然气工程—油气田开发工程]