双孔隙度方法在油藏描述中的应用

Application of the dual porosity method to the reservoir description

华北油田物探公司研究所, 任丘 O62552

Research Institute,Geophysical Prospecting Company,Huabei Petroleum Administration,Renqiu 062552

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。

In the dual porosity method, the acoustic log and the densilog are used to calculate theacoustic porosity and the density porosity-Based on the ratio of these two kinds of porosities, wedivided the lithology, built the geologic mode1, and performed the seismic data inversion with thewe1l constraint. Finally, we obtained the rock porosity and the oil saturation. In the paper, takingthe Hong-1O wel1 reservoir for example, we make use of the dual porosity method to carry out thereservoir description. So the quantitative description of the reservoir characteristic parameters hasbeen realized, and the description precision is also improved.