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双孔隙度法是利用声波测井和密度测并计算声波孔隙度及密度孔隙度；并由这两种孔隙度的比值大小进行君性划分，建立地质模型，进行井约束下的地震资料反演；最终求取岩石孔隙度及含油饱和度的方法。本文以洪10井油藏为例，将双孔隙度方法应用于油藏描述中，使油藏特征参数定量化描述得以实现，提高了描述的精度。
The dual porosity method uses sonic logging and density measurement to calculate sonic porosity and density porosity. Divided by the ratios of these two porosity ratios, a geological model is established for seismic data inversion under well constraints ; Finally get the rock porosity and oil saturation method. Taking Hong 10 oil well as an example, this paper applies the dual porosity method to reservoir description, and realizes the quantitative description of the reservoir characteristic parameters to improve the accuracy of the description.