物探化探计算技术2013，Vol.35Issue(2)：168-174,7.DOI:10.3969/j.issn.1001-1749.2013.02.08
基于PML井间可变交错网格的弹性波数值模拟
BASED ON THE PERFECTLY MATCHED LAYER CROSS WELL SIMULATION OF ELASTIC WAVE WITH VARIABLE AND STAGGERED GRIDS
摘要
Abstract
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.关键词
井间地震/可变网格/交错网格/PML/数值模拟Key words
crosswell seismic/ variable grid/ staggered grid/ PML/ numerical simulation分类
天文与地球科学引用本文复制引用
李洋森,孟凡顺,李景岩,张亮..基于PML井间可变交错网格的弹性波数值模拟[J].物探化探计算技术,2013,35(2):168-174,7.
