Atlantis "Beyond 4D" Ocean Bottom Nodes Acquisition Design

PreviousNext No AccessSEG Technical Program Expanded Abstracts 2015Atlantis “Beyond 4D” Ocean Bottom Nodes acquisition designAuthors: Jean-Paul van Gestel*Elizabeth L'HeureuxJ.R. SandschaperPierre-Olivier AristonNick D. BassettSireesh DadiJean-Paul van Gestel*BPSearch for more papers by this author, Elizabeth L'HeureuxBPSearch for more papers by this author, J.R. SandschaperBPSearch for more papers by this author, Pierre-Olivier AristonBPSearch for more papers by this author, Nick D. BassettBPSearch for more papers by this author, and Sireesh DadiBPSearch for more papers by this authorhttps://doi.org/10.1190/segam2015-5847522.1 SectionsSupplemental MaterialAboutPDF/ePub ToolsAdd to favoritesDownload CitationsTrack CitationsPermissions ShareFacebookTwitterLinked InRedditEmail Abstract This study shows the results from finite difference modeling for optimizing the acquisition design of the Atlantis 2014-2015 Ocean Bottom Nodes (OBN) survey. During the planning of this Atlantis time lapse acquisition, it was realized that additional nodes would be available, which provided an opportunity to use those nodes to improve the 3D static seismic image. A modeling study was initiated with the objective to identify optimum placement of the additional nodes. The model was generated using realistic detailed stratigraphy modeling and several cases were studied by adding node patches in different directions. Observations show that the addition of the nodes to the South, has the largest impact on the imaging of Atlantis Field. To measure the imaging impact of each added node location a more detailed tool was generated; the node areal contribution map, which shows how much each individual node contributes to the image of the reservoir. Improved imaging was also shown by modeling of reduced node spacing and increased node density. Altogether, the insights from this modeling work enabled optimized acquisition design for the survey that was acquired on the Atlantis Field in 2014-2015. 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Bassett, and Sireesh Dadi, (2015), "Atlantis “Beyond 4D” Ocean Bottom Nodes acquisition design," SEG Technical Program Expanded Abstracts : 125-129. https://doi.org/10.1190/segam2015-5847522.1 Plain-Language Summary Keywordsacquisitionocean-bottom nodemodelingPDF DownloadLoading ...