论文部分内容阅读
塔河地区碳酸盐缝洞型储层具有极强的非均质性。储层空间类型及结构十分复杂,储层岩性的变化导致岩石骨架参数难以确定,给定量计算储层基质和裂缝孔隙度带来很大困难。文章介绍了一种考虑了由骨架岩石体积、基质孔隙体积、连通缝洞体积、不连通缝洞体积组成的测井解释模型可以模拟基质和连通缝洞的并联导电网络以及非连通洞和基质的串联导电网络的三孔隙模型。实际应用取得了良好的效果,表明采用三孔隙度模型评价塔河油田奥陶系碳酸盐岩储层的优越性。
The carbonate fractured-hole reservoirs in Tahe area have extremely strong heterogeneity. The type and structure of reservoir space are very complicated. The change of reservoir lithology leads to the difficulty of determining the rock skeleton parameters. It is very difficult to calculate the reservoir matrix and fracture porosity quantitatively. In this paper, a well log interpretation model considering the volume of rock matrix, the volume of matrix pores, the volume of interconnected pores and the volume of non-interconnected pores is introduced to simulate the parallel conductive networks between matrix and interconnected pores as well as the non-connected pores and matrix Three-porosity model of series conductive network. The practical application has achieved good results, indicating that the superiority of Ordovician carbonate reservoir in Tahe Oilfield is evaluated by the three porosity model.