成都理工大学学报（自然科学版）2009，Vol.33Issue(4)：434-442,9.
剖面三维地质建模及高斯射线束正演
3-D geological modeling based on a section and Gaussian beam forward modeling
邓飞 1黄地龙1
作者信息
- 1. 成都理工大学信息工程学院,成都,610059
- 折叠
摘要
Abstract
The ray method plays a vital role in seismic exploration. The 3-D block geological model is the base of the ray numerical modeling. However the 3-D geological modeling, especially the complex model structure usually is quite difficult. This paper proposes an algorithm to use two-dimensional geological cross section to construct the three dimensional geological model. The algorithm has effectively solved the complex geological modeling problem. Based on the first hand information about 2-D geological cross section edited by users, the method researches the topology of geological blocks and automatically structures model on 3-D geological blocks. With the 3-D block geological model, the authors deeply research the numerical modeling method of Gaussian Beam. Gaussian beam method is a fast method of seismic wave field modeling. The seismic wave field obtained by this method has wave properties in both kinematics and high-frequency dynamic. By merging wave equation with the ray theory, the method obtains ray tracks by the kinematical ray tracing and distribution of high-frequency by the dynamic ray tracing. As a result, it has the dynamic and geometric characters and costs little calculation time, and shows good precision.关键词
三维地质建模/地质块体/三角网/射线追踪/高斯射线束正演Key words
3-D geologic modeling/geologic block/triangle net/ray tracing/Gaussian beam forward分类
能源科技引用本文复制引用
邓飞,黄地龙..剖面三维地质建模及高斯射线束正演[J].成都理工大学学报（自然科学版）,2009,33(4):434-442,9.
