一种修正的Kuster-Toksöz岩石物理模型及应用

Kuster-Toksöz (KT) rock physics model is a classical rock physics model concerning the influence of multiple-inclusion material (void inclusion,fluid and solid inclusions) on elastic wave velocities.However,the KT model is limited to dilute concentration of inclusion material.In this paper,the ideal of differential effective medium is applied into the KT model,and a new modified KT rock physics model for rock containing high-concentration inclusions is derived.This rock physics model is applied to organic-enriched rocks.Firstly,the simulation result shows that the new model is superior to the KT model in rocks with high volume inclusion material.Furthermore S-wave velocity prediction based on the proposed method is more accurate than those from the KT model.