Sandstone evaluation can be better carried on, using sandstone capillary pressure curve(pressuring mercury way) data to quantitatively study sandstone pore structure characteristic parameters.

应用砂岩的毛细管压力曲线（压汞法）资料定量研究砂岩孔隙空间结构特征参数，以便更好地进行砂岩评价。

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The mercury-ejection capillary pressure curve is characterized by integrative fractals and a large range from the highest to lowest injection pressure.

退汞曲线分形特征具有完整性，测量尺度范围从最高注入压力到最低退出压力。

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