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本文介绍了用加回压和非稳定测定的方法对某气藏岩心进行的水驱气的实验。用Buckley-Leverett驱替理论推导出了适合于水驱气的相对渗透率饱和度计算公式。这对带边底水气藏的开发及其动态分析是有实际意义的。
In this paper, we introduce the experiment of water purging for a core of a gas reservoir by the method of back pressure and unstable measurement. Based on Buckley-Leverett displacement theory, the formula of relative permeability saturation suitable for water purging is deduced. This is of practical significance for the development and dynamic analysis of the reservoir with edge water.