储层砂体渗流能力聚类研究

Research of Sand Body Percolation Capacity Division Based on Clustering Analysis

基于数学统学中的聚类理论提出了一种划分储层砂体渗流能力级别的方法:砂体渗流能力聚类法。运用该方法对油藏各个井点的地质属性数据进行聚类分析,将每个小层上各个井点的渗流能力分为若干级别,并对井点之间储层的渗流能力级别进行插值出图,从而得到不同小层的储层渗流能力聚类图,该图能直观地反应小层各个区域渗流能力。最后用大庆某采油厂某区块进行实例分析并给出聚类结果。

The sand body percolation capacity division theory is put forward.The theory based on clustering analysis which belongs to the statistics.Its principle is collect well log data of all well point in the reservoir and put these data into the clustering analysis software.Through the analysis results of clustering software,the percolation capacity of sand at different well point will divided into different levels.After that,the percolation capacity data between different well point will be got through the interpolation method.At least the percolation capacity distribution picture through these data be could got.Percolation capacity distribution picture could prove percolation capacity of different area in reservoir intuitively.At least the sand body percolation capacity division result of a block which belongs to a oil production company of Daqing oilfield is put forward.