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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| Format: | Article |
| Language: | English |
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Wiley
2011-01-01
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| Series: | International Journal of Geophysics |
| Online Access: | http://dx.doi.org/10.1155/2011/870819 |
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| author | Joost van der Neut Maria Tatanova Jan Thorbecke Evert Slob Kees Wapenaar |
| author_facet | Joost van der Neut Maria Tatanova Jan Thorbecke Evert Slob Kees Wapenaar |
| author_sort | Joost van der Neut |
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| 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. |
| format | Article |
| id | doaj-art-6d71fcb7bbc64f438047d63b4056eeb2 |
| institution | Kabale University |
| issn | 1687-885X 1687-8868 |
| language | English |
| publishDate | 2011-01-01 |
| publisher | Wiley |
| record_format | Article |
| series | International Journal of Geophysics |
| spelling | doaj-art-6d71fcb7bbc64f438047d63b4056eeb22025-02-03T06:15:12ZengWileyInternational 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 |
| 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 |
| title | 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_short | Deghosting, Demultiple, and Deblurring in Controlled-Source Seismic Interferometry |
| title_sort | deghosting demultiple and deblurring in controlled source seismic interferometry |
| url | http://dx.doi.org/10.1155/2011/870819 |
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