Comparison of the results of the suppression of surface related multiple reflections by predictive deconvolution in pre- and post-stack in 2D marine seismic reflection data: a case study from the Sea of Marmara

2B Deniz yansıma sismiği verilerinde deniz tabanı tekrarlı yansımalarının ön kestirim ters evrişimi ile yığma öncesi ve yığma sonrasında bastırılması sonuçlarının karşılaştırılması: Marmara Denizi’nden bir örnek çalışma

Authors

Mehmet Ali ÜGE, Ali İsmet KANLI

Keywords

Predictive Deconvolution, Seismic Reflection, Data Processing, Suppression of the Multiple Reflections, Marmara Sea.

Abstract

This study aims to suppress the multiple reflections from the multi-channel seismic reflection data, which collected on the profile M97-29 at the Sea of Marmara with the MTA Sismik-1 Vessel in 1997 by the General Directorate of Mineral Research and Exploration (MTA), both at the pre- and post-stack stages separately, by using predictive deconvolution and to compare both results. The stack section obtained by applying predictive deconvolution to the pre-stack shot gathers, is compared with the stack section obtained by applying predictive deconvolution to the post-stack section, which has no predictive deconvolution application before stack. The multiple reflections are mostly suppressed in both sections, but the amplitudes of the primary reflections are much more noticeable and have much higher amplitudes on the stack section obtained by applying predictive deconvolution to the pre-stack shot gathers. Considering the data used in this study, which obtainedfrom a shallow seabed section of the Sea of Marmara including slopped structures, it has beenobserved that the result obtained by applying the predictive deconvolution process to the pre-stack shot gathers are more successful than the other. https://doi.org/10.19111/bulletinofmre.909820

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