河流相储层三维流动单元模型建立--以孤东油田七区馆上段为例

应用流动分层指标法对孤东油田七区馆上段进行了流体流动单元的识别与划分,将孤东油田馆上段储层按其渗流能力划分为5种流动单元类型。在流动单元划分基础上,以沉积相为控制条件,利用基于目标的示性点过程算法,建立了一个注采井组的三维流动单元模型,通过流动单元模型与沉积微相模型对比以及油藏数值模拟方法的验证,说明流体流动单元三维模型更能反映储层的三维非均质性。

3D flow unit modeling in reservoirs with fluvial facies-taking upper member of Guantao formation in 7 area of Gudong oilfield as an example

Reservoirs in the upper member of Guantao formation had been identified and divided into 5 types of flow u-nits according to their percolation capacity by using flow zone indicator method ( FZI). Based on the flow unit classification and controlled by sedimentary faeies, using arithmetic of general marked point process ( GMPP) based on the target established a 3D flow unit model for an injection-production well group. Comparison between flow unit model and sedimentary microfa-cies model and verification by reservoir numerical simulation indicated that the 3D flow unit model was a better one in illustrating 3D reservoir heterogeneity.