储层宏观非均质定量表征方法研究

Quantitative characterization method for macroscopic heterogeneity of reservoirs

针对目前常用储层宏观非均质表征方法使用过程中存在的局限,根据离散数据的物理和几何意义,推导了非均质系数来表征储层宏观非均质性。非均质系数既有劳伦兹系数的归一化特征,又能避免繁琐的计算过程,能够较好地定量表征储层宏观非均质性。公式结果表明,随着非均质系数逐渐接近1,储层非均质性逐渐增强。

The coefficient of heterogeneity is used to characterize the macroscopic heterogeneity of reservoirs according to the physical and geometric meaning of the discrete data in terms of limitation of conventional characterization methods.The coefficient features normalization as the Lorentz coefficient and avoids the complicated calculation.It can be used for quantitative characterization of macroscopic heterogeneity of reservoir.The results of the formula show that the reservoir heterogeneity grows gradually with the coefficient of heterogeneity reaches to1.