Seismic wave modelling of two-phase media based on BISQ model
Hu Ying1, Chen Hui2, Su Yun3,4,5, Liu Zhongliang4, Zhang Honglin4
1. College of Geophysics,Chengdu University of Technology,Chengdu,Sichuan 610059,China;
2. Key Lab of Geomathematics of Sichuan,Chengdu University of Technology,Chengdu,Sichuan 610059,China;
3. Postdoctoral Workstation,Zhongyuan Oilfield Branch Co.,Sinopec,Puyang,Henan 457001,China;
4. Geophysical Research Institute,Zhongyuan Oilfield Branch Co.,Sinopec,Puyang,Henan 457001,China;
5. Research Institute of Petroleum Exploration & Development,PetroChina,Beijing 100083,China
Abstract：Biot-llow and squirt-llow are two most important mechanisms in porous media containing lluids.The BISQ model involving these two mechanisms can reflect very well the propagation law of elastic wave in porous media.A seismic wave modeling of two-phase media based on BISQ model is proposed in this paper.From the fundamental equations of BISQ model, we first derive the expression of a staggered grid and high-order finite difference method using the absorbing boundary of perfect matched layer (PML).Then we carry out a numerical modeling of seismic wave tiled in the two-phase isotropic media.Finally we analyze impacts of parameter variation upon wave tiled by adjusting the porosity and permeability parameters.The numerical modeling results show that the forward modeling based on BISQ model correctly reflect the wave field characteristics in two-phase isotropic media, and that the influences caused by the variation of model parameters on wave field are very obvious.
胡英, 陈辉, 苏云, 刘忠亮, 张红霖. 基于双相介质BISQ模型的地震波正演模拟[J]. 石油地球物理勘探, 2012, 47(6): 901-907.
Hu Ying, Chen Hui, Su Yun, Liu Zhongliang, Zhang Honglin. Seismic wave modelling of two-phase media based on BISQ model. OGP, 2012, 47(6): 901-907.
