The use of seismic attribute in 2D data: A case study

PreviousNext No Access15th International Congress of the Brazilian Geophysical Society & EXPOGEF, Rio de Janeiro, Brazil, 31 July-3 August 2017The use of seismic attribute in 2D data: A case studyAuthors: Salomão Alencar Serra NunesMaria Eliege GlóriaJoão Paulo Miranda OliveiraCarlos Eduardo N. CardosoCláudio Luiz de Andrade Viera FilhoJúlia Peixoto de OliveiraLeonardo BorghiSalomão Alencar Serra NunesLAGESED – UFRJSearch for more papers by this author, Maria Eliege GlóriaLAGESED – UFRJSearch for more papers by this author, João Paulo Miranda OliveiraLAGESED – UFRJSearch for more papers by this author, Carlos Eduardo N. CardosoLAGESED – UFRJSearch for more papers by this author, Cláudio Luiz de Andrade Viera FilhoLAGESED – UFRJSearch for more papers by this author, Júlia Peixoto de OliveiraLAGESED – UFRJSearch for more papers by this author, and Leonardo BorghiLAGESED – UFRJSearch for more papers by this authorhttps://doi.org/10.1190/sbgf2017-246 SectionsAboutPDF/ePub ToolsAdd to favoritesDownload CitationsTrack CitationsPermissions ShareFacebookTwitterLinked InRedditEmail Abstract The seismic reflection enables to determine geological structures and others geological features in subsurface, which allows generation of detailed geological models, with the support of geophysical logs (that contains lithological and petrophysical information). The present case study aims to discuss the importance of seismic attributes and how we interpret 2D seismic section support 2D seismic interpretation, located in Fazenda Cedro paleocanyon, onshore Espírito Santo basin. The use of seismic attributes were essential due to the structural and stratigraphical paleo environments (mixed shelf) complexity of the basin, which affect the recognition of the deepest reflectors. The attributes are useful since seismic reflectors do not exhibit a good resolution or show some noise. This still unsolved problem is common in the first moment and needs this application treatment to enhance reflections and classify the comprehension of the data. Each attribute used has its own particularity and attends a different purpose. The tecVA composes the volume of amplitudes technics, which was important in the interpretation of subsurface geological features, such as unconformities and faults. Besides, testing this attribute to delimit, without filtering in this case study, the contrast between sedimentary deposits and basement. As a result it was possible to recognize the main differences between reflectors and their behavior depending on the attribute applied. The tecVA was important in unconformities and structural interpretation, while the RMS Amplitude + Phase shift in basement and sedimentary deposits differentiation. In fact, the seismic interpretation may present its barriers according to the material used, but applying the right methods this work can become more practical and present more satisfactory results. Keywords: attributes, interpretation, workflowPermalink: https://doi.org/10.1190/sbgf2017-246FiguresReferencesRelatedDetailsCited bySeaward‐Dipping Reflector Influence on Seafloor Magnetostratigraphy—A Pelotas Basin View2 December 2022 | Geophysical Research Letters, Vol. 49, No. 23 15th International Congress of the Brazilian Geophysical Society & EXPOGEF, Rio de Janeiro, Brazil, 31 July-3 August 2017ISSN (online):2159-6832Copyright: 2017 Pages: 1876 publication data© 2017 Published in electronic format with permission by the Brazilian Geophysical SocietyPublisher:Society of Exploration Geophysicists HistoryPublished Online: 03 Aug 2017 CITATION INFORMATION Salomão Alencar Serra Nunes, Maria Eliege Glória, João Paulo Miranda Oliveira, Carlos Eduardo N. Cardoso, Cláudio Luiz de Andrade Viera Filho, Júlia Peixoto de Oliveira, and Leonardo Borghi, (2017), "The use of seismic attribute in 2D data: A case study," SEG Global Meeting Abstracts : 1268-1271. https://doi.org/10.1190/sbgf2017-246 Plain-Language Summary KeywordsattributesinterpretationworkflowPDF DownloadLoading ...