【摘要】 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更多还原

【Abstract】 The reservoir water saturation and the recovery ratio are important parameters in exploitation and development of oil and gas accumulation. For the ZBXR gas reservoir, the measured average irreducible water saturation is 26% by the method of the high pressure semi permeable plate, and the calculated average irreducible water film thickness is 0.043 μm using theoretical formula. In experimental simulation of water drive in matrix, the total recovery is around 45% and the corresponding water film thickness is 0.119 μm. In order to increase the total recovery of fractured tight gas reservoir, the phenomenon that the water in fractures invades the pores must be controlled so as to seal the gas.更多还原