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该文探讨了利用毛管压力曲线(压汞法)资料定量研究储集岩孔隙空间结构特征参数的原理和方法。由于毛管压力曲线反映了在一定驱退压力下水银可能进入的孔隙喉道大小及这种喉道所连通的孔隙体积,因此应用毛管压力曲线可以对储集岩的孔隙结构进行研究。又因为岩石毛管压力曲线(压汞法)不仅测定速度快,而且还可以得到多项参数。由此获得多种信息,再结合其他资料可对具体地区的储层岩石进行孔隙结构特征评价。
This paper discusses the principle and method of quantitatively studying the pore structure parameters of reservoir using capillary pressure curve (mercury intrusion method) data. The capillary pressure curve can be used to study the pore structure of reservoir rocks because the capillary pressure curve reflects the size of the pore throats that mercury may enter under a certain retreating pressure and the pore volume communicated by the throat. Because rock capillary pressure curve (mercury intrusion method) is not only measured fast, but also can get a number of parameters. From this, a variety of information is obtained, which can be combined with other data to evaluate the pore structure characteristics of reservoir rocks in specific areas.