Some composite index of reservoir Heterogeneity

摘要

Reservoir heterogeneity is the synthetic effect of multi-factor, such as lithology, lithofacies and structure, etc. But heterogeneity is traditionally evaluated by some single factors. This single-factor method is difficult to consider the effect of other factors. So in this paper, A new composite parameter called the composite index of reservoir heterogeneity (I_RH) is raised. This index can reflect the reservoir heterogeneity, and is calculated by fuzzy composite evaluation.