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化学剂在多孔介质中传输机理研究 【作者】孙灵辉 【导师】黄延章; 刘先贵

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化学剂在多孔介质中传输机理研究

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作者孙灵辉导师黄延章; 刘先贵
h5kR6R#G0【作者基本信息】中国科学院研究生院(渗流流体力学研究所),流体力学,2008年,博士水利论文zo)tB$j6s C ~ m

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【中文摘要】 驱油用化学剂在多孔介质中的传输属于物理化学渗流力学基础理论研究,本文以实验为基础,综合运用渗流力学、数学物理方法、计算流体力学等学科,研究了单相和多相条件下驱油用化学剂在多孔介质中的传输机理,通过物理模拟实验和解析方法得到了化学剂在水中综合扩散系数、运移滞后系数,分析了实验参数与渗流速度的关系。使用全隐式差分格式求解了单相条件下驱油用化学剂在多孔介质中传输方程,数值解和实验结果吻合较好,对化学剂在多孔介质中传输规律进行了分析。建立了一种新的测量表面活性剂在油中弥散系数的实验方法,该方法简单适用。建立了多相条件下驱油用化学剂在多孔介质中传输方程,测定了化学剂在油水两相中分配系数、表面活性剂在油中的弥散系数,利用全隐式差分格式求解了方程,比较了数值解和实验值,进一步分析了化学剂在多孔介质中的传输规律,并运用数值模拟的方法对三元复合驱油体系中化学剂和单一驱油体系中化学剂在多孔介质中传输机理进行了比较,对三元复合驱油体系的物理化学作用和协同效应有了更进一步的认识。本文所建立的多相条件下化学剂在多孔介质中传输方程可以为化学驱数值模拟软件所用,使其更加完善,更好地描述和预测复杂化学流体在多孔介质中...更多传输过程,为现场应用提供有利保证。  还原水利论文I^'VL6i

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【英文摘要】 Flooding chemical agents in porous media transmission belongs to physical chemical porous flow mechanics basic theoretical research. The paper on an experimental basis, the integrated use of porous flow mechanics, mathematical physics method, computational fluid dynamics, and other disciplines studies on the single phase and multiphase conditions flooding chemical agents in porous media transmission mechanism, physical simulation experiments and analytical methods can be used to get the chemicals in the water integrated diffusion coefficient, migration lag coefficient, and the paper analysises the experimental parameters and the relationship between the flow rate.Using the whole hermit difference format solves flooding chemical agent in porous media transmission equation under the single phase conditions, numerical solutions are basically agreed with experimental results, and chemical agents in porous media transmission rule is analyzed.A new measurement method of surfactants in oil di...更多ffusion coefficient is established and is simple and practical.Transmission equation of flooding chemical agent in porous media is established under multiphase conditions, and chemical agent adsorption on quartz, oil-water partition, and the surfactants diffusion coefficient in oil coefficient are surveyed. Using all hermit format solves this equation, and numerical solutions are compared with analytical solutions, and chemical agents in porous media transmission rule is analysed. Use of numerical simulation method ASP system chemical transmission mechanism is comparised with displacement system of a single chemical transmission mechanism in porous media, the ASP role of physical chemistry and synergies are knowed more.Chemical flooding numerical simulation software can use chemical transfer equation under the multiphase conditions in porous media which this paper stablishes to more complete it and better describe and predict complex chemical fluids in porous media transmission process, and it provides an assurance for field application.  还原

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:A4z8N,hP.T0【中文关键词】 物理化学渗流; 多相; 扩散; 吸附; 数值解
A D9pM(|1am0【英文关键词】 physical chemistry porous flow; multiphase; diffusion; absorption; numerical solution水利论文 BE"S,@ J9D'|r iQ7S

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TAG: 化学 黄延章 机理 刘先贵 孙灵辉
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