| 基于双相介质BISQ模型的地震波正演模拟 |
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| 引用本文： | 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. |
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| 作者姓名： | 胡英 陈辉 苏云 刘忠亮 张红霖 |
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| 作者单位： | 1.成都理工大学地球物理学院 四川成都 610059;2.成都理工大学“数学地质”四川省高校重点实验室 四川成都 610059;3.中国石化中原油田博士后工作站 河南濮阳 457001;4.中国石化中原油田物探研究院 河南濮阳 457001;5.中国石油勘探开发研究院 北京 100083 |
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| 基金项目： | 国家自然科学基金项目(40873035);数学地质四川省重点实验室开放基金项目(SCSXDZ2011)联合资助 |
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| 摘 要： | Biot流动机制和喷射流动机制是含流体孔隙介质中的两种重要的力学机制,同时包含这两种机制的BISQ模型能够更好地反映孔隙介质中弹性波的传播规律。本文从BISQ模型的基本方程出发,推导了完全匹配层(PML)吸收边界的交错网格高阶有限差分方法的表达式,对双相各向同性介质中地震波场进行了数值模拟;然后通过调整孔隙度、渗透率等储层参数,对比分析了储层参数对双相介质波场特征的影响。数值模拟结果表明,基于BISQ模型的正演模拟正确反映了双相各向同性介质的波场特征;储层参数取值变化对波场特征的影响也十分明显。
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| 关 键 词： | BISQ模型 双相介质 PML边界条件 波场模拟 |
| 收稿时间： | 2011-08-27 |
Seismic wave modelling of two-phase media based on BISQ model |
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| Hu Ying,Chen Hui,Su Yun,Liu Zhongliang,Zhang Honglin.Seismic wave modelling of two-phase media based on BISQ model[J].Oil Geophysical Prospecting,2012,47(6):901-907. |
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| Authors: | Hu Ying Chen Hui Su Yun Liu Zhongliang Zhang Honglin |
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| Affiliation: | 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 |
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| 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. |
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| Keywords: | BISQ model two-phase medium PML boundary condition wave tield modeling |
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