Based on the perfectly Matched Layer Cross Well Simulation of Elastic Wave with Variable and Staggered Grids
详细信息
- 责任者：Li Yangsen (College of Marine Geo-Science ; Ocean University of China ; Qingdao 266100 ; China) ; Meng Fanshun
- 刊名：Computing Techniques for Geophysical and Geochemical Exploration
- 出版年：2013
- 卷期：35(2)
- 关键词：地震勘探 ; seismic exploration ; 井间法 ; interwell methods
- 页码：p.168-174
- 图表：illus., 1 table, 15 refs.
- 分类号：1600
- issnNo：ISSN1001-1749
- isbnNo：CN51-1242/P
摘要
Crosswell seismic with the characteristics of high precision and high resolution is becoming the key technology solving the problem of structure fine imaging and reservoir description.It needs high accuracy and efficiency of the forward modeling technology as the effective assistant technique for analysis of the real underground seismic wave propagation and identifying complex wave field.According to elastic wave equation numerical simulation method,this paper introduced variable staggered grid technology into the research of crosswell seismic elastic wave simulation,especially for the studying of the small scale,thin interbed and so on.The different scales of geological body use the different scales on the grid division.Numerical simulation results show that variable staggered grids are effective to improve numerical efficiency under the precondition of high precision.The method improved the adaptability of numerical simulation for the complex medium.It has the vital role to study the characteristics of the subtle crosswell seismic wave propagation.
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