基于单砂体的河流相储层地质建模方法探讨

为了合理表征河流相储层内部结构和非均质性特征,提出了一种基于单砂体的河流相储层地质建模方法。基于等时地层格架网格模型确定性地建立地震解释砂体单元结构模型,通过提取单砂体单元地震属性体并进行时深转换,结合地震属性体协模拟技术建立储层参数模型,可以较好地反映单砂体单元的构型和非均质特征。不同网格模型油藏数值模拟结果表明,基于等时地层格架网格划分方法所建立的地质模型更具有地质意义,能更好地反映储层特征。

A discussion on a fluvial reservoir modeling method based on a single sandbody

A method of fluvial reservoir modeling based on a single sandbody has been developed in order to reasonably characterize internal structure and heterogeneity of these reservoirs.A sandbody unit model of seismic interpretation is deterministically built on a basis of isochronous formation frame grid,and a model of reservoir parameters is built by picking up seismic attributes of a single sandbody and making time depth conversion,in combination with the technique of seismic attribute co-simulation,by which the configuration and heterogeneity of a single sandbody can be better reflected.The results of numerical reservoirs simulation from various grid models have shown that the geologic model built by isochronous formation frame grid is more meaningful and can reflect reservoir characteristics better.