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Numerical simulation and imaging of scattered wave of sunk pillar in coal seam TEXT SIZE: A A A

The scattered wave theory has built the basis of scattered wave imaging of the sunken pillar in coal field seismic exploration. When seismic waves meet with the scatter point underground, the waves propagate around and generate scattered waves. And then reflection is formed by enhancing energy interference of scattered waves. Through the numerical modeling, we can receive the scattered waves from the steep dip interface of the sunken pillar in coal seam. After researching wave characteristic on common scatter point (CSP) gathers, we can recognize the scattered waves, and obtain the information of geologic structure underground, including the structure position and the outline of heterogeneous geologic body. Tested with field seismic data, the result of scattered wave imaging indicates that the equivalent offset method (EOM) can reasonably and accurately use the information of scattered waves, and the pre-stack time migration based on EOM is an effective method for the imaging of sunken pillars and inhomogeneous geologic bodies.

Publication name  CHINESE JOURNAL OF GEOPHYSICS-CHINESE EDITION Volume: 55  Issue: 5  Pages: 1749-1756  Published: MAY 2012
Author(s)  Cao Zhi-Yong; Wang Wei; Wang Yun
Corresponding author  

 CAO Zhiyong
 caozhy09@gmail.com 
 Chinese Acad Sci, Inst Geol & Geophys, Beijing 100029, Peoples R China  

Author(s) from IGCAS  WANG Yun

View here for the details from ISI Web of Knowledge

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