萨尔图油田辫状河储层三维层次建模

提出了辫状河储层精细建模的层次建模思路,根据辫状河储层的层次性,首先建立辫状河道与坝的分布;其次建立辫状河道内部河床与废弃河道分布,以及坝内部坝核与坝顶的分布;最后建立河床、坝核、坝顶结构内部的泥质夹层分布。建模时不同层次储层之间互为约束,较好地反映了不同层次储层之间内在联系和分布规律。以大庆萨尔图油田P13小层辫状河储层为例,逐层次建立了不同储层结构的三维空间分布,模拟结果很好体现了不同层次储层形态以及分布特征,具备较高的精度,能够应用于油田生产。

3-D Hierarchical Modeling of the Braided Channel Reservoir of Saertu Oilfield

The paper presents a new hierarchical modeling method for braided channel reservoir. According to the reservoir hierarchy,the reservoir of braided channel and bar are first modeled,and then,the channel bed and discarded channel in the braided channel,and the core bar and top bar in the bar,are modeled respectively. Finally,the mud interbed in the second order reservoir is modeled. During the modeling,different order reservoir are constrained by each other,which revealed the sediment rules. The braided channel reservoir model is established by this method in Saertu oilfield of Daqing. The result shows that the shapes and distribution of different order reservoir are well reproduced. The model is highly precise and can be put into use in reservoir development.