断块油藏精细三维地质模型的建立

Establishment of fine 3D geological model of fault block reservoir

断块油藏的精确描述已成为指导油藏开发的重点和难点。文章以某断块油藏为基础,通过研究分析已有的地质资料和测井数据,借助PETREL软件建立了断层模型和构造模型,直观表现出该断块油藏的地质构造和断层的空间分布情况,利用聚类分析得出井附近岩相分布,采用序贯指示模拟出岩相模型,在相控条件下采用序贯高斯模拟出孔渗属性参数模型,对该断块油藏后续的开发具有非常重要的指导意义。

The accurate description of fault block reservoirs has become the focus and difficulty in guiding reservoir development.Based on a fault block reservoir,this paper analyzes the existing geological data and logging data,and establishes the fault model and structural model with PETREL software to visually show the geological structure and spatial distribution of the fault block reservoir.In the case,the distribution of the lithofacies near the well is obtained by cluster analysis.The sequence indicator model is used to simulate the facies model.Under the facies-controlled condition,the sequential Gaussian model is used to simulate the porosity and permeability property model.These models have very important guiding significance for the subsequent development of the fault block reservoir.