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储层水饱和度和采收率是油气藏勘探和开发的重要参数。采用半渗透隔板法测定ＺＢＸＲ气藏储层平均束缚水饱和度为２６％ ，应用理论公式计算其束缚水膜厚度为０．０４３ μｍ 。实验模拟水驱基质岩块的最终采出程度为４５％ 左右，相应的水膜厚度为０．１１９ μｍ 。为提高裂缝性致密气藏的最终采收率，则要控制水沿裂缝侵入以封闭基质中的天然气
Reservoir water saturation and oil recovery are important parameters for oil and gas exploration and development. The average irreducible water saturation of ZBXR gas reservoirs measured by semi-permeable diaphragm method is 26%. The theoretical irreducible water film thickness is 0.043 μm. Experimental results show that the ultimate recovery of water-flooding matrix blocks is about 45%, and the corresponding water film thickness is 0.119 μm. In order to improve the ultimate recovery of fractured tight gas reservoirs, water must be controlled to penetrate along the fractures to enclose the natural gas in the matrix