| 关于VTI介质中多分量转换波地震数据采集的最佳接收时窗 |
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| 引用本文： | 芦俊,王赟,石瑛.关于VTI介质中多分量转换波地震数据采集的最佳接收时窗[J].地球物理学报,2006,49(1):234-243. |
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| 作者姓名： | 芦俊 王赟 石瑛 |
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| 作者单位： | 中国科学院地质与地球物理研究所，北京 100029 |
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| 基金项目： | 中国石油化工股份有限公司“地震各向异性在油气田勘探中的应用”项目（P02075）资助. |
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| 摘 要： | 以P_P波时窗和P_SV波时窗的交叉部分作为VTI介质中P_P波、P_SV波联合采集的最佳时窗，在有效时窗内通过基于VTI介质的射线追踪法确定每个反射点的P_P波、P_SV波射线路径和相角，求解Zoeppritz方程得出P_SV波与P_P波反射系数(或透射系数)的比值，并将该比值的绝对值定义为控制因子G. 以G值作为控制VTI介质中P_P波、P_SV波联合采集观测系统设计的主要参数，通过分析G值确定检波器位置的最佳接收时窗，得出优化VTI介质中多分量转换波地震数据采集的接收时窗的方法.
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| 关 键 词： | VTI 最佳接收时窗 G值 Zoeppritz方程 |
| 文章编号： | 0001-5733（2006）01-0234-10 |
| 收稿时间： | 2004-12-30 |
| 修稿时间： | 2004-12-302005-09-05 |
The best receiving window for acquisition of multi_component converted seismic data in VTI media |
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| LU Jun,WANG Yun,SHI Ying.The best receiving window for acquisition of multi_component converted seismic data in VTI media[J].Chinese Journal of Geophysics,2006,49(1):234-243. |
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| Authors: | LU Jun WANG Yun SHI Ying |
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| Institution: | Institute of Geology and Geophysics, Chinese Academy of Sciences, Beijing 100029, China |
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| Abstract: | We consider the cross area of the PP_ and PSV_wave window as the best window for joint PP_ and PSV_wave acquisition in VTI media. Within the effective window, the PP_ and PSV_wave's raypathes and phase angles at all reflection points are calculated, and the reflection (or transmission) coefficients' ratios of PSV- to PP_wave solved from Zoeppritz equations are defined as the controlling factor G. Then we use G values as the main controlling parameters of joint PP_ and PSV_wave acquisition design in VTI media, determine the best receiving window of detectors by analyzing G values, and derive the method of optimizing the receiving window for acquisition of multi_component converted seismic data in VTI media. |
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| Keywords: | VTI best receiving window G value Zoeppritz equation |
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