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国内外研究流体流动问题的基本方法包括基于理论推导的流体力学方法和基于实验统计的渗流力学方法,二者在研究油藏多孔介质内的流动问题时均有应用,但研究宏观问题以渗流力学方法为主,研究微观问题以流体力学方法为主。应用认识论的辩证观点探讨了不同研究对象、研究尺度与研究方法之间的关系,研究油藏内流动问题包括微观尺度、实验室尺度和宏观油藏尺度,三个尺度下对应的研究对象不同,微观尺度下多采用流体力学方法,宏观尺度下多采用渗流力学方法。以三重介质模型为基础分析了宏观油藏尺度下缝洞型油藏的流动模式,提出塔河油田奥陶系油藏不同区域的4种流动模式,总体可用渗流力学三重介质模型及简化模型来解决,但对局部钻遇的大缝大洞需用流体力学方法解决。
The basic methods to study fluid flow at home and abroad include the fluid mechanics method based on theory and the seepage mechanics method based on experimental statistics. Both of them are used in the research of flow problems in porous media, but the macroscopic problems are studied by seepage mechanics The main method is to study the microscopic problems by fluid mechanics. The dialectical view of epistemology explores the relationship between different research objects, research scales and research methods, studies the flow problems in reservoirs including microscopic scale, laboratory scale and macroscopic reservoir scale, and the corresponding research objects under the three scales are different, At the micro scale, hydrodynamics method is mostly used, and seepage mechanics method is mostly used at the macro scale. Based on the triple-media model, the flow patterns of fractured-vuggy reservoirs at macroscopic reservoir scales are analyzed. Four flow patterns of Ordovician reservoirs in Tahe oilfield are proposed. The three-media model and simplified model of seepage mechanics can be used in general Solution, but the local drilling of large cracks need to use fluid mechanics method to solve.