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各向异性介质转换波速度分析方法
Method of anisotropic converted-wave velocity analysis
【摘要】 地层存在各向异性时,将使地震波速度和时距曲线变得很复杂。在现有理论基础上,较系统地分析了地层各向异性系数与速度及时距曲线之间的关系,并进一步研究了各向异性介质纵波,特别是P-SV转换波的速度分析方法。该方法不仅可求得各向异性介质的地震波速度,而且可求得地层各向异性参数。经理论模型试处理证明了该方法的正确性。
【Abstract】 When the layers have the anisotropic properties, seismic wave’s velocity and moveout will (become) complex. On the basis of literatures appeared, this paper analyses the relations between anisotropic parameters and velocity as well as moveout by the numbers. It studies the method of anisotropic velocity analysis about pressure wave, especially converted-wave. This method can derive not only seismic wave’s velocity but also the anisotropic parameters. And it is proved to be valid by processing theoretical models.
【关键词】 各向异性;
转换波;
各向异性速度分析;
非双曲线时距方程;
【Key words】 anisotropy; converted-wave; velocity analysis; non-hyperbolic moveout equation;
【Key words】 anisotropy; converted-wave; velocity analysis; non-hyperbolic moveout equation;
【基金】 国家863计划资助项目(2001AA602018-04)
- 【文献出处】 成都理工大学学报(自然科学版) ,Journal of Chengdu University of Technology(Science & Technology Edition) , 编辑部邮箱 ,2004年02期
- 【分类号】P631
- 【被引频次】16
- 【下载频次】273