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• W4246082011 abstract "PreviousNext No AccessSEG Technical Program Expanded Abstracts 2012Seismic attribute expression of differential compactionAuthors: Satinder ChopraKurt J. MarfurtSatinder Chopra*Arcis Seismic Solutions, CalgarySearch for more papers by this author and Kurt J. MarfurtThe University of Oklahoma, NormanSearch for more papers by this authorhttps://doi.org/10.1190/segam2012-1323.1 SectionsSupplemental MaterialAboutPDF/ePub ToolsAdd to favoritesDownload CitationsTrack CitationsPermissions ShareFacebookTwitterLinked InRedditEmail Abstract In a marine environment, topographic features on the sea floor will usually be covered by a thick layer of shale with the rise of sea level, resulting in a uniform, nearly flat surface. Evaporating seas may bury sea floor topography with a thick layer of salt. In a fluvial-deltaic environment, channels are cut and filled with a lithology that may be different from that through which it is cut, followed by subsequent burial with (perhaps) a more uniform sedimentary layer, With continued burial and overburden, pore sizes are reduced and water is squeezed out of the rocks, reducing the rock volume. Different lithologies have different original porosity, pore shapes, and mineral matrix composition, and thus different response to burial. Lateral changes in lithology give rise to lateral changes in compaction, or simply “differential compaction”. For this reason, easily-mapped flooding and other surfaces that were originally flat can exhibit measureable, and often significant structural relief. These maps give rise to lateral “structural” anomalies. Recognition of differential compaction forms a key component in modern seismic geomorphology based interpretation workflows with excellent publications showing the expression of differential compaction on vertical slices. Mapping the 3D expression of compaction features takes considerable time and is thus less well reported and the use of 3D geometric attributes to map compaction features is underutilized. In this paper we illustrate the attribute expression of the more common differential compaction features over channels and carbonate reefs using examples from the Western Canadian Sedimentary Basin. Permalink: https://doi.org/10.1190/segam2012-1323.1FiguresReferencesRelatedDetailsCited bySystematic spacing and topological variations in layer‐bound fault systems1 August 2021 | Basin Research, Vol. 33, No. 5Independent component analysis for reservoir geomorphology and unsupervised seismic facies classification in the Taranaki Basin, New ZealandDavid Lubo-Robles and Kurt J. Marfurt11 April 2019 | Interpretation, Vol. 7, No. 3Seismic structure interpretation based on machine learning: A case study in coal miningDong Li, Suping Peng, Yongxu Lu, Yinling Guo, and Xiaoqin Cui28 May 2019 | Interpretation, Vol. 7, No. 3Interesting directions being pursued in seismic curvature attribute analysisSatinder Chopra and Kurt J. Marfurt25 October 2012 SEG Technical Program Expanded Abstracts 2012ISSN (print):1052-3812 ISSN (online):1949-4645Copyright: 2012 Pages: 4609 Publisher:Society of Exploration Geophysicists HistoryPublished Online: 25 Oct 2012 CITATION INFORMATION Satinder Chopra and Kurt J. Marfurt, (2012), Seismic attribute expression of differential compaction, SEG Technical Program Expanded Abstracts : 1-5. https://doi.org/10.1190/segam2012-1323.1 Plain-Language Summary PDF DownloadLoading ..." @default.
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