储层建模中对变差函数分析的几点认识

摘要

变差函数模型选择以及参数设置是影响储层建模精度的重要因素。文中应用序贯指示方法进行相建模，主要分析了变差函数类型的选择以及主方向的确定，阐述了计算实验变差函数过程中合理确定参数的方法。并对求取变差函数过程中存在的问题进行分析，提出了变差函数分析流程。%The selection and parameter setting of variogram model is the important factor of affecting the accuracy of reservoir modeling. This paper used Petrel software for phase modeling, Expounded the choice of variogram type, the determination of Major direction, it is described how to determine a reasonable method for setting parameters in the process of fitting experiment variogram. Analysed the problems occurred in the process of variogram calculation, and at last put foward the working flow of the variogram acquirement.