二维横向各同同性介质中VSP三分量地震记录合成

1993年 32卷 第No. 3期
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3-COMPONENT VSP DATA MODELLING IN 2-D TRANSVERSELY ISOTROPIC MEDIA
1. 中国科学院地球物理研究所,北京100101;2. 长春地质学院,长春130026
1. Institute of Geophysics, Chinese Academy of Science, Beiging 100101;2. Changchun University of Earth Science, Changchun 130026
本文作者利用快速傅里叶变换(FFT)技术的快速与高精度等优越性,对2-D横向各向同性介质中VSP三分量地震记录UxUyUz的合成进行了研究,实现了快速三分量地震记录正演新算法。理论模型计算结果表明横向各向同性介质中横波分裂现象的存在,并说明了这项数字仿真技术的可行性。
The authors take the advantage of the rapidity and the high precision of FFT in modelling 3-component VSP data ( Ux, Uyand Uz ) for 2-D transversely isotropic media. As a result, a new fast algorithm is developed for 3-component VSP data forward modelling. The computing results have revealed the presence of shear-wave splitting in transversely isotropic media and confirmed the feasibility of the numeric modelling method.
二维横向各向同性介质; VSP; 三分量地震记录; 傅里叶变换法; 正演模拟;
2-D Transversely Isotropic Media; VSP; 3-Component Data; Fourier Transfom; Forward Modelling;