Based on the Perfect Matched Layer Crosswell Simulation of Elastic Wave with Separated P-Waves and S-Waves
详细信息
- 责任者：Li Yangsen (College of Marine Geoscience ; Ocean University of China ; Qingdao 266100 ; China) ; Wang Tao
- 刊名：Computing Techniques for Geophysical and Geochemical Exploration
- 出版年：2012
- 卷期：34(6)
- 关键词：地震勘探 ; seismic exploration ; 井间法 ; interwell methods
- 页码：p.735-740
- 图表：2 illus., 15 refs.
- 分类号：1600
- issnNo：ISSN1001-1749
- isbnNo：CN51-1242/P
摘要
Crosswell seismic method observed rich and complex wave-field information.The difficulty is how to identify and separate the wave-field information.Starting from the idea of P-wave wave-field being rotation-free field and S-wave being divergence-free field,using staggered-grid high-order finite difference method,we have numerically simulated the problem of crosswell separated P-waves and S-waves.The numerical results show that it is obviously improved the accuracy and stability of numerical results compared with two-order displacement equation through the application of staggered-grid first order velocity-stress wave-field separation equation.This kind of acquisitive method about S-wave data provides a new thought for the applications and interpretation of crosswell seismic.
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