双河油田储层地质模型研究

Reservoir stochastic modeling for the Shuanghe Oil Field,Henan

在建立双河油田高精度的三维地质模型中,首先进行了基础地质研究,主要包括岩石相的识别、沉积微相的划分、基准面旋回的划分与对比。在详细地质研究基础上,以24个短期旋回为单位采用截断高斯模拟方法建立沉积微相三维模型,采用相控物性参数建模技术,利用顺序高斯模拟方法建立孔隙度、渗透率的三维模型。最后对模型进行了粗化,直接提供给油藏数模使用。

A high-resolution 3-D reservoir model is constructed using the stochastic modeling technique for the Shuanghe Oil Field, Henan in order to provide reliable data for optimizing exploration plans. The modeling technique is base on the recognition of 11 types of sedimentary facies and 6 facies associations, division of sedimentary microfacies, and division and correlation of base level cycles with the aid of high-resolution sequence stratigraphic theory. The 3-D microfacies model is formulated by using the truncating Gauss simulation method, and the 3-D model is suggested for the porosity and permeability by using sequence Gauss simulation method. Finally the reservoir model is upscaled for reservoir numerical simulation.