Efficient computation of the equivalent offset traveltimes for EOM

Bancroft, John C.; Li, Xinxiang

doi:10.1190/1.1820271

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2010

2011

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Cited by 2 publications

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“…The equivalent offset migration (EOM) method (Bancroft and Geiger, 1994;Bancroft and Li, 1998;Geiger and Bancroft, 1996) was proposed by Bancroft, who is member of CREWES at the University of Calgary. It is a higher effi ciency imaging method.…”

Section: Introductionsmentioning

confidence: 99%

Numerical simulation scattered imaging in deep mines

Pan

2010

Appl. Geophys.

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Conventional seismic exploration, mostly based on refl ection 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 effi cient imaging method for improving resolution of mine seismic exploration.

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Section: Introductionsmentioning

confidence: 99%