A modified Kuster-Toksöz rock physics model and its application
Liu Zhishui1,2,3, Sun Zandong2,4, Dong Ning3, Liu Junzhou3, Liu Zhixiu5, Wang Yajing4
1. College of Geology Engineering and Geomatics, Chang'an University, Xi'an, Shaanxi 710054, China; 2. China University of Petroleum(Beijing), Beijing 102249, China; 3. Research Institute of Petroleum Exploration and Production, SINOPEC, Beijing 100083, China; 4. BGP Inc., CNPC, Zhuozhou, Hebei 072751, China; 5. Qingyang Vocational and Technical College, Qiangyang, Gansu 745000, China
Abstract: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.
刘致水, 孙赞东, 董宁, 刘俊州, 刘致秀, 王亚静. 一种修正的Kuster-Toksöz岩石物理模型及应用[J]. 石油地球物理勘探, 2018, 53(1): 113-121.
Liu Zhishui, Sun Zandong, Dong Ning, Liu Junzhou, Liu Zhixiu, Wang Yajing. A modified Kuster-Toksöz rock physics model and its application. Oil Geophysical Prospecting, 2018, 53(1): 113-121.
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