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Book Chapter

3D ultra shallow seismic imaging of buried pipe using dense receiver array: Practical and theoretical considerations

By
Ran Bachrach
Ran Bachrach
TelAviv University, Dept. of Geophysics and Planetary Sciences, Israel.
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Moshe Reshef
Moshe Reshef
TelAviv University, Dept. of Geophysics and Planetary Sciences, Israel.
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Published:
January 01, 2016

Abstract

Direct 3D imaging of a 6” pipe, buried at a depth of 1.5 m, using portable dense receiver array shows that small objects associated with large impedance contrast can be precisely imaged. Detailed velocity analysis applied to backscattered wavefield from small buried objects provides resolution of less than 10 m/s. Comparison of backscattered wavefield observations to analytical solutions show a generally good match. Theoretical calculations also show that the objectcan be detected with wavelengths much larger than its size due to the large contrast associated with its hollow shape. Dense spatial sampling is needed to capture the energy emitted from the scattering object and successfully focus it by diffraction imaging. Portable dense receiver array can provide a cost-effective solution forsuchtasks.

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Contents

Society of Exploration Geophysicists Geophysics Reprint Series

Seismic Diffraction

Kamil Klem-Musatov
Kamil Klem-Musatov
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Henning Hoeber
Henning Hoeber
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Michael Pelissier
Michael Pelissier
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Tijmen Jan Moser
Tijmen Jan Moser
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Society of Exploration Geophysicists
Volume
30
ISBN electronic:
9781560803188
Publication date:
January 01, 2016

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