Diffraction migration imaging of reflected in-seam waves and its application

JI Guangzhong

doi:10.3969/j.issn.1001-1986.2017.01.024

Volume 45 Issue 1

Feb 2017

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Article Contents

COAL GEOLOGY & EXPLORATION > 2017 > 45(1): 121-124.

JI Guangzhong. Diffraction migration imaging of reflected in-seam waves and its application[J]. COAL GEOLOGY & EXPLORATION, 2017, 45(1): 121-124. doi: 10.3969/j.issn.1001-1986.2017.01.024

Citation:

JI Guangzhong. Diffraction migration imaging of reflected in-seam waves and its application[J]. COAL GEOLOGY & EXPLORATION, 2017, 45(1): 121-124. doi: 10.3969/j.issn.1001-1986.2017.01.024

JI Guangzhong. Diffraction migration imaging of reflected in-seam waves and its application[J]. COAL GEOLOGY & EXPLORATION, 2017, 45(1): 121-124. doi: 10.3969/j.issn.1001-1986.2017.01.024

Citation:

JI Guangzhong. Diffraction migration imaging of reflected in-seam waves and its application[J]. COAL GEOLOGY & EXPLORATION, 2017, 45(1): 121-124. doi: 10.3969/j.issn.1001-1986.2017.01.024

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Diffraction migration imaging of reflected in-seam waves and its application

doi: 10.3969/j.issn.1001-1986.2017.01.024

JI Guangzhong^1,2

Funds:

National Science and Technology Major Project(2011ZX05040-002)

Received Date: 16 Mar 2016
Publish Date: 25 Feb 2017

Abstract

Abstract

The reflected in-seam waves can detect the small structure in the coal seam. At present, the researches on the reflected in-seam waves exploration are less at home and abroad, and the signal-to-noise ratio is low. In order to improve the image quality, the diffraction migration imaging method of reflected in-seam waves was investigated. The preprocessing technologies suitable for reflected in-seam waves were analyzed. Based on three-dimensional numerical simulations and actual data processing, the feasibilities of reflected in-seam waves were demonstrated for both theoretical models and practical applications. The results showed that reflected in-seam waves should do the Hilbert transform when diffraction migration imaging was used. The in-seam wave velocity is approximately constant and the diffraction migration requires only one velocity, constituting the unique advantages of reflected in-seam waves.
- reflected in-seam waves,
- diffraction migration,
- coal seam,
- fault

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References(14)

References

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