| 裂隙各向异性介质波场VSP多分量记录的数值模拟 |
| |
| 引用本文： | 牛滨华,何樵登.裂隙各向异性介质波场VSP多分量记录的数值模拟[J].地球物理学报,1995,38(4):519-527. |
| |
| 作者姓名： | 牛滨华 何樵登 |
| |
| 作者单位： | 1. 中南工业大学, 长沙 410083;
2. 长春地质学院, 长春 130026 |
| |
| 摘 要： | 从各向异性介质中最为普遍的裂隙各向异性介质出发，推导了同零井源距ＶＳＰ三分量观测方式相一致的一维三分量波动方程．为了更符合实际观测，引入了坐标旋转，可以模拟井中任意方位的多层各向异性介质的波场响应．用有限元方法进行了波场数值模拟，重点突出了获得凡Ｒ３×３矩阵剖面的方法，同时对Ｒ３×３，矩阵剖面进行了一般性的分析解释，事实证明，Ｒ３×３矩阵剖面含有介质丰富的各向异性信息．
|
| 关 键 词： | 裂隙各向异性介质 定向激发接收点 多分量观测 有限元方法 矩阵剖面 |
| 收稿时间： | 1993-07-05 |
NUMERICAL MODELING OF VSP MULTICOMPONENT RECORDS IN CRACKS ANISOTROPIC MEDIUM |
| |
| NIU BIN-HUA.NUMERICAL MODELING OF VSP MULTICOMPONENT RECORDS IN CRACKS ANISOTROPIC MEDIUM[J].Chinese Journal of Geophysics,1995,38(4):519-527. |
| |
| Authors: | NIU BIN-HUA |
| |
| Institution: | 1. Central South University of Technologh, Changsha 410083;
2. Changchun Geology College, Changchun 130026 |
| |
| Abstract: | From considering common cracks anisotropic medium in anisotropic media, 1D3-component equation is calculated. The equation is similar in zero-section VSP survey. In order to conform to readily, the paper leads into coordinate rotation so that wave field of multi-layers anisotropic media about arbitrarily azimuth in well can be modeled. Using finite element method, numerical modeling are achieved.Obtaining Ｒ３×３ matrix section is emphasized specially, and so Ｒ３×３ matrix section is ordinarily analyzed and explained. The several special wave phenomena are stressed.In fact, rich anisotropic information is contained in Ｒ３×３ matrix section. |
| |
| Keywords: | Cracks anisotropic media Survey of directional shot and multicomponent recording Finite element method Matrix section |
| 本文献已被 CNKI 维普 等数据库收录！ |
| 点击此处可从《地球物理学报》浏览原始摘要信息 |
| 点击此处可从《地球物理学报》下载免费的PDF全文 |
