
TY  - JOUR
A1  - Ba, Jing 
A1  - Guo, Mengqiu 
A1  - Xu, Wenhao 
A1  - Sun, Fengyuan 
A1  - Zhang, Lin 
A1  - Cheng, Wei 
T1  - A double double-porosity model for wave propagation in patchy-saturated tight sandstone with fabric heterogeneity
JF  - ASEG Extended Abstracts
JO  - ASEG Extended Abstracts
Y1  - 2018
VL  - 2018
IS  - 1
SP  - 1
EP  - 6
KW  - 
UR  - https://doi.org/10.1071/ASEG2018ABW9_2B 
N2  - In natural reservoir rocks, fabric heterogeneity can further induce heterogeneous geometrical distribution of immiscible multi-phase fluid mixture, since fluid migration may be affected by lithological variation (mainly permeability) in geological time scales, causing patchy saturation of fluids. Both structure heterogeneity and patchy-saturation can lead to strong seismic wave dispersion and attenuation. In this work, a double double-porosity model is presented to describe the overlapping effect of the two heterogeneities on wave dispersion and attenuation. The wave propagation equations are derived from the Hamilton&#x2019;s principle, and the numerical results for a tight sandstone are compared with corresponding low-frequency experimental data, which shows good agreements. This new model allows for a comprehensive description of wave propagation process in highly complex reservoirs. 
ER  -

