Deghosting, Demultiple, and Deblurring in Controlled-Source Seismic Interferometry

With controlled-source seismic interferometry we aim to redatum sources to downhole receiver locations without requiring a velocity model. Interferometry is generally based on a source integral over cross-correlation (CC) pairs of full, perturbed (time-gated), or decomposed wavefields. We provide an...

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Main Authors: Joost van der Neut, Maria Tatanova, Jan Thorbecke, Evert Slob, Kees Wapenaar
Format: Article
Language:English
Published: Hindawi Limited 2011-01-01
Series:International Journal of Geophysics
Online Access:http://dx.doi.org/10.1155/2011/870819
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spelling doaj-6d71fcb7bbc64f438047d63b4056eeb22020-11-24T22:08:54ZengHindawi LimitedInternational Journal of Geophysics1687-885X1687-88682011-01-01201110.1155/2011/870819870819Deghosting, Demultiple, and Deblurring in Controlled-Source Seismic InterferometryJoost van der Neut0Maria Tatanova1Jan Thorbecke2Evert Slob3Kees Wapenaar4Department of Geotechnology, Faculty of Civil Engineering and Geosciences, Delft University of Technology, Stevingweg 1, 2628 CN, Delft, The NetherlandsEarth's Physics Department, Saint Petersburg State University, Ulyanovskaya Street 1, Saint Petersburg 198504, RussiaDepartment of Geotechnology, Faculty of Civil Engineering and Geosciences, Delft University of Technology, Stevingweg 1, 2628 CN, Delft, The NetherlandsDepartment of Geotechnology, Faculty of Civil Engineering and Geosciences, Delft University of Technology, Stevingweg 1, 2628 CN, Delft, The NetherlandsDepartment of Geotechnology, Faculty of Civil Engineering and Geosciences, Delft University of Technology, Stevingweg 1, 2628 CN, Delft, The NetherlandsWith controlled-source seismic interferometry we aim to redatum sources to downhole receiver locations without requiring a velocity model. Interferometry is generally based on a source integral over cross-correlation (CC) pairs of full, perturbed (time-gated), or decomposed wavefields. We provide an overview of ghosts, multiples, and spatial blurring effects that can occur for different types of interferometry. We show that replacing cross-correlation by multidimensional deconvolution (MDD) can deghost, demultiple, and deblur retrieved data. We derive and analyze MDD for perturbed and decomposed wavefields. An interferometric point spread function (PSF) is introduced that can be obtained directly from downhole data. Ghosts, multiples, and blurring effects that may populate the retrieved gathers can be locally diagnosed with the PSF. MDD of perturbed fields can remove ghosts and deblur retrieved data, but it leaves particular multiples in place. To remove all overburden-related effects, MDD of decomposed fields should be applied.http://dx.doi.org/10.1155/2011/870819
collection DOAJ
language English
format Article
sources DOAJ
author Joost van der Neut
Maria Tatanova
Jan Thorbecke
Evert Slob
Kees Wapenaar
spellingShingle Joost van der Neut
Maria Tatanova
Jan Thorbecke
Evert Slob
Kees Wapenaar
Deghosting, Demultiple, and Deblurring in Controlled-Source Seismic Interferometry
International Journal of Geophysics
author_facet Joost van der Neut
Maria Tatanova
Jan Thorbecke
Evert Slob
Kees Wapenaar
author_sort Joost van der Neut
title Deghosting, Demultiple, and Deblurring in Controlled-Source Seismic Interferometry
title_short Deghosting, Demultiple, and Deblurring in Controlled-Source Seismic Interferometry
title_full Deghosting, Demultiple, and Deblurring in Controlled-Source Seismic Interferometry
title_fullStr Deghosting, Demultiple, and Deblurring in Controlled-Source Seismic Interferometry
title_full_unstemmed Deghosting, Demultiple, and Deblurring in Controlled-Source Seismic Interferometry
title_sort deghosting, demultiple, and deblurring in controlled-source seismic interferometry
publisher Hindawi Limited
series International Journal of Geophysics
issn 1687-885X
1687-8868
publishDate 2011-01-01
description With controlled-source seismic interferometry we aim to redatum sources to downhole receiver locations without requiring a velocity model. Interferometry is generally based on a source integral over cross-correlation (CC) pairs of full, perturbed (time-gated), or decomposed wavefields. We provide an overview of ghosts, multiples, and spatial blurring effects that can occur for different types of interferometry. We show that replacing cross-correlation by multidimensional deconvolution (MDD) can deghost, demultiple, and deblur retrieved data. We derive and analyze MDD for perturbed and decomposed wavefields. An interferometric point spread function (PSF) is introduced that can be obtained directly from downhole data. Ghosts, multiples, and blurring effects that may populate the retrieved gathers can be locally diagnosed with the PSF. MDD of perturbed fields can remove ghosts and deblur retrieved data, but it leaves particular multiples in place. To remove all overburden-related effects, MDD of decomposed fields should be applied.
url http://dx.doi.org/10.1155/2011/870819
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