| 基于BISQ模型双相各向同性介质中地震波数值模拟 |
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| 引用本文： | 孟庆生,何樵登,朱建伟,王德利.基于BISQ模型双相各向同性介质中地震波数值模拟[J].吉林大学学报(地球科学版),2003,33(2):217-221. |
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| 作者姓名： | 孟庆生 何樵登 朱建伟 王德利 |
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| 作者单位： | 吉林大学地球探测科学与技术学院,吉林,长春,130026 |
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| 基金项目： | 国家自然科学基金资助项目 ( 4 0 174 0 36 ) |
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| 摘 要： | 基于BISQ机制,推导了双相各向同性介质中弹性波数值模拟方程,并借助交错网格有限差分方法进行了波场模拟。证实了三种波(快纵波、慢纵波、横波SV)的存在和波场特征;在合成地震记录中,观测列三种波的反射,由于各种波相互之间的转换,转换波在地震记录中显示也很清楚,这使得波场变得更为复杂化。
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| 关 键 词： | BISQ机制 交错网格有限差分方法 波场模拟 地震记录 各向同性 地震波 |
| 文章编号： | 1671-5888(2003)02-0217-05 |
| 修稿时间： | 2002年5月28日 |
SEISMIC MODELING IN ISOTROPIC POROUS MEDIA BASED ON BISQ MODEL |
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| MENG Qing-sheng,HE Qiao-deng,ZHU Jian-wei,WANG De-li.SEISMIC MODELING IN ISOTROPIC POROUS MEDIA BASED ON BISQ MODEL[J].Journal of Jilin Unviersity:Earth Science Edition,2003,33(2):217-221. |
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| Authors: | MENG Qing-sheng HE Qiao-deng ZHU Jian-wei WANG De-li |
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| Abstract: | Based on BISQ model, the equation of seismic wave propagation in isotropic poro us media was derived, and the staggered-grid finite-difference algorithm was use d to simulate wave field. On the snapshot, the existence of "fast" compressio nal wave P1, "slow" compressional wave P2 and shear wave SV was verified. In the synthetic experiment, the reflection waves of P1?P2, and SV was found. Bec ause of the conversion between different kinds of waves, the converted waves i n record were showed clearly, which made the wave field much more complex. |
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| Keywords: | porous media BISQ isotropy seismic modeling stagg ered grid finite-difference |
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