基于序贯指示模拟方法的某区域储层孔隙度空间展布

Distribution of Porosity Based on Sequential Indicator Simulation Method

序贯指示模拟法是以指示克里金为基础的一种随机模拟方法,它是一种非高斯模拟方法,与传统的方法相比具有很多优点:适用范围更广泛、不用去掉某些奇异值。利用序贯指示模拟法,通过对王家岗孔店组工区实际数据进行分析研究,建立了多个等概率的高精度的储层参数孔隙度的空间分布模型,进一步基于MATLAB软件平台进行了算法实现,得到了研究工区储层孔隙度空间展布等值线图,与实际较为吻合。

Sequential indicator simulation method is a stochastic simulation method which is on the basis of indication Kriging. It is different from Gaussian simulation method. It has more advantages than tradition methods. The realm of application is very wide,which can＇ t get rid of some strange datum such as porosity. The paper utilizes sequential indicator simulation method and builds many equiprobabilistic arid accurate spatial distribution models of reservoir parameters through the study of the actual data of Wangjiagang region, and obtains a distribution map of porosity based on MATLAB. The results of experiment conform to the reality.