Numerical simulation scattered imaging in deep mines
Hu Ming-Shun1,2, Pan Dong-Ming1,2, and Li Juan-Juan1,3
1. The School of Resource and Earth Science, China University of Mining and Technology, Xuzhou, 221116, China.
2. State Key Laboratory For Geomechanics and Deep Underground Engineering, China University of Mining and Technology, Xuzhou, 221116, China.
3. Key Laboratory of CBM Resources and Reservoir Formation Process, Ministry of Education, China University of Mining and Technology, Xuzhou, 221116, China.
Abstract Conventional seismic exploration, mostly based on reflection theory, hardly has accurate imaging results for disaster geologic bodies which have small scale, steep dip, or complex structure. In this paper, we design two typical geologic models for analyzing the characteristics of scattered waves in mines for forward modeling by finite difference and apply the equivalent offset migration (EOM) and EOM-based interference stack migration methods to mine prospecting. We focus on the analysis of scatted imaging’s technological superiority to reflection imaging. Research shows: 1) scattered imaging can improve fold and make the best of weak scattered information, so it shows better results than post-stack migration imaging and 2) it can utilize the diffraction stack migration method-based ray path theory for mine seismic advanced prediction, so it provides an new efficient imaging method for improving resolution of mine seismic exploration.
This work is supported financially by the National Key Project (Grant No. 2008ZX05035), the 973 Program (Grant No. 2009CB219603 and 2007CB209406), and the National Natural Science Foundation of China (Grant No. 50974081).
Cite this article:
HU Ming-Shun,PAN Dong-Ming,LI Juan-Juan. Numerical simulation scattered imaging in deep mines[J]. APPLIED GEOPHYSICS, 2010, 7(3): 272-282.
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2010, Vol. 7 
