随机建模中稳健变差函数求取研究

Study on the Acquirement of Robust Variogram in Stochastic Modeling

针对油气储层垂向钻井的物性分布特点,分析了奇异值、混合分布和漂移3个主要影响油气储层物性参数稳健变差函数求取的地质因素,总结了消除相应地质影响因素的手段和方法,最后提出了油气储层物性参数稳健变差函数求取的工作流程。

With the detailed study on the vertical characters of the petroleum well logs,the paper analysised the three main geological factors-outliers,mixed distribution and drift which influenced the acquirement of the robust variogram of reservoir petrophysical parameters,and sumarized the methods to remove the influence of the above geological factors,and then put foward the working flow of the robust variogram acquirement of petroleum reservoir parameters.