دورية أكاديمية
Multiscale seismic attributes: source-corrected wavelet response and application to high-resolution seismic data
| العنوان: | Multiscale seismic attributes: source-corrected wavelet response and application to high-resolution seismic data |
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| المؤلفون: | Ker, Stephan, Le Gonidec, Yves, Gibert, Dominique |
| المساهمون: | Unité Géosciences Marines (GM), Institut Français de Recherche pour l'Exploitation de la Mer (IFREMER), Géosciences Rennes (GR), Université de Rennes (UR)-Institut national des sciences de l'Univers (INSU - CNRS)-Observatoire des Sciences de l'Univers de Rennes (OSUR), Université de Rennes (UR)-Institut national des sciences de l'Univers (INSU - CNRS)-Université de Rennes 2 (UR2)-Centre National de la Recherche Scientifique (CNRS)-Institut National de Recherche pour l’Agriculture, l’Alimentation et l’Environnement (INRAE)-Institut national des sciences de l'Univers (INSU - CNRS)-Université de Rennes 2 (UR2)-Centre National de la Recherche Scientifique (CNRS)-Institut National de Recherche pour l’Agriculture, l’Alimentation et l’Environnement (INRAE)-Centre National de la Recherche Scientifique (CNRS), Institut de Physique du Globe de Paris (IPGP), Institut national des sciences de l'Univers (INSU - CNRS)-Université Paris Diderot - Paris 7 (UPD7)-Université de La Réunion (UR)-Institut de Physique du Globe de Paris (IPG Paris)-Centre National de la Recherche Scientifique (CNRS) |
| المصدر: | ISSN: 0956-540X. |
| بيانات النشر: | HAL CCSD Oxford University Press (OUP) |
| سنة النشر: | 2012 |
| المجموعة: | Archive Ouverte de l'Université Rennes (HAL) |
| مصطلحات موضوعية: | Wavelet transform, Wave propagation, Acoustic properties, [SDU.STU]Sciences of the Universe [physics]/Earth Sciences |
| الوصف: | International audience ; A wavelet-based method was presented in a previous work to introduce multiscale seismic attributes for high-resolution seismic data. Because of the limited frequency bandwidth of the seismic source, we observed distortions in the seismic attributes based on the wavelet response of the subsurface discontinuities (Le Gonidec et al.). In this paper, we go further in the seismic source-correction by considering Lévy alpha-stable distributions introduced in the formalism of the continuous wavelet transform (CWT). The wavelets are Gaussian derivative functions (GDF), characterized by a derivative order. We show that a high-resolution seismic source, after a classical signature processing, can be taken into account with a GDF. We demonstrate that in the framework of the Born approximation, the CWT of a seismic trace involving such a finite frequency bandwidth can be made equivalent to the CWT of the impulse response of the subsurface and is defined for a reduced range of dilations. We apply the method for the SYSIF seismic device (Marsset et al.; Ker et al.) and show that the source-corrections allow to define seismic attributes for layer thicknesses in the range [24; 115 cm]. We present the analysis for two seismic reflectors identified on a SYSIF profile, and we show that the source-corrected multiscale analysis quantifies their complex geometries. |
| نوع الوثيقة: | article in journal/newspaper |
| اللغة: | English |
| العلاقة: | insu-00912447; https://insu.hal.science/insu-00912447Test; https://insu.hal.science/insu-00912447/documentTest; https://insu.hal.science/insu-00912447/file/PL03189.pdfTest |
| DOI: | 10.1111/j.1365-246X.2012.05601.x |
| الإتاحة: | https://doi.org/10.1111/j.1365-246X.2012.05601.xTest https://insu.hal.science/insu-00912447Test https://insu.hal.science/insu-00912447/documentTest https://insu.hal.science/insu-00912447/file/PL03189.pdfTest |
| حقوق: | info:eu-repo/semantics/OpenAccess |
| رقم الانضمام: | edsbas.66840600 |
| قاعدة البيانات: | BASE |
| DOI: | 10.1111/j.1365-246X.2012.05601.x |
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