| 薄层状沉积旋迴介质中垂直地震剖面法反射波勘探基础及解释方法的讨论 |
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| 引用本文： | 于振清,王贵和,张威.薄层状沉积旋迴介质中垂直地震剖面法反射波勘探基础及解释方法的讨论[J].地球物理学报,1984,27(6):582-594. |
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| 作者姓名： | 于振清 王贵和 张威 |
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| 作者单位： | 1. 煤炭工业部第一地球物理勘探队;
2. 山东煤田地球物理勘探队 |
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| 摘 要： | 本文从地震模型实验入手,讨论和测试了垂直地震剖面法在多个薄层粘合的二维固体模型中地震直达波、反射波的运动规律,及其各向异性现象。利用坐标变换方法,将多层的各向异性介质转换成均匀各向同性介质,从而推导出地震反射波理论时-深方程。通过模型的测定,介绍了各向异性系数的求取及地质剖面的构制方法。比较了各向异性理论及均匀同性理论解释的地质剖面,肯定了各向异性理论在垂直地震剖面法解释中的可靠性。
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| 关 键 词： | 反射波 沉积旋迥 垂直地震剖面法 射线速度 薄层状 解释方法 中垂 各向异性空间 直达波 指示线 |
| 收稿时间： | 1983-11-19 |
DISCUSS ON THE VSP REFLECTION PROSPECTION BASIS AND ITS INTERPRETATION IN THE CYCLIE SEDIMENTARY MEDIA WITH THIN LAYER STRUCTURE |
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| YU ZHEN-QING,WANG GUI-HE,ZHANG WEI.DISCUSS ON THE VSP REFLECTION PROSPECTION BASIS AND ITS INTERPRETATION IN THE CYCLIE SEDIMENTARY MEDIA WITH THIN LAYER STRUCTURE[J].Chinese Journal of Geophysics,1984,27(6):582-594. |
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| Authors: | YU ZHEN-QING WANG GUI-HE ZHANG WEI |
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| Institution: | 1. The First Geophysical Exploration Team of the Coal Ministry;
2. The Coal Exploration Party of Shandong |
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| Abstract: | In this article, we investigate the propagation of direct and reflected seismic waves, and their anisotropy in a thin multilayered coherent 2-D solid model through model experimentation. By use of coordinate transformation, the multilayered anisotropic medium is changed into a homogeneous isotropic medium and a theoretical T-D equation of seismic reflection wave is derived. We present here the calculation method for the anisotropy factor and mapping method for the geological profile. Comparing the geological profiles which are obtained from the anisotropy theory with those from the homogeneous isotropical theory, we are convinced that the former is more appropriate. |
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