Improved fracture basement imaging by unveiling diffraction energy

PreviousNext No AccessSEG Technical Program Expanded Abstracts 2019Improved fracture basement imaging by unveiling diffraction energyAuthors: Riaz AlaiNgoc Huy NguyenWai Hoong TangFarhan Ahmed KhanA. Aziz B. MuhamadRoszendy B. DanialRohaila Bt RoslanShivaji MaitraRiaz AlaiPETRONAS Carigali Sdn. Bhd.Search for more papers by this author, Ngoc Huy NguyenPETRONAS Carigali Sdn. Bhd.Search for more papers by this author, Wai Hoong TangPETRONAS Carigali Sdn. Bhd.Search for more papers by this author, Farhan Ahmed KhanPETRONAS Carigali Sdn. Bhd.Search for more papers by this author, A. Aziz B. MuhamadPETRONAS Carigali Sdn. Bhd.Search for more papers by this author, Roszendy B. DanialPETRONAS Carigali Sdn. Bhd.Search for more papers by this author, Rohaila Bt RoslanPETRONAS Carigali Sdn. Bhd.Search for more papers by this author, and Shivaji MaitraCGGSearch for more papers by this authorhttps://doi.org/10.1190/segam2019-3215978.1 SectionsAboutPDF/ePub ToolsAdd to favoritesDownload CitationsTrack CitationsPermissions ShareFacebookTwitterLinked InRedditEmail AbstractIn the past, there have been many efforts to effectively delineate and study fractured basements. These focused on improving the attribute analysis of the fractures to minimize the risk. However, the accuracy of attribute analysis depends on the quality of seismic imaging and this is why, one of the focus points has been to develop and apply novel methods for improved imaging of fractured systems inside basement. To obtain optimal results and accurate imaging, effective estimation and suppression of surface-related and internal multiples has been shown to be very important. Through unveiling of reflection energy we can isolate weak diffractions, related to fracture systems, with high resolution. By separating the reflection energy from the total wave field and omitting these reflections, new opportunities may be opened towards more accurate Fracture Characterization. These results can then be compared and cross checked with attribute analyses that, in general, are applied on total wave field data, in search for small scale geological features. Comparing fracture response from properly imaged diffraction wave-field, with attribute analysis on the total wave-field, is highly recommended to minimize the risks associated with imaging inaccuracy.Presentation Date: Wednesday, September 18, 2019Session Start Time: 8:30 AMPresentation Start Time: 10:10 AMLocation: 214DPresentation Type: OralKeywords: diffraction, migration, basement, fractures, faultsPermalink: https://doi.org/10.1190/segam2019-3215978.1FiguresReferencesRelatedDetails SEG Technical Program Expanded Abstracts 2019ISSN (print):1052-3812 ISSN (online):1949-4645Copyright: 2019 Pages: 5407 publication data© 2019 Published in electronic format with permission by the Society of Exploration GeophysicistsPublisher:Society of Exploration Geophysicists HistoryPublished Online: 10 Aug 2019 CITATION INFORMATION Riaz Alai, Ngoc Huy Nguyen, Wai Hoong Tang, Farhan Ahmed Khan, A. Aziz B. Muhamad, Roszendy B. Danial, Rohaila Bt Roslan, and Shivaji Maitra, (2019), "Improved fracture basement imaging by unveiling diffraction energy," SEG Technical Program Expanded Abstracts : 3994-3998. https://doi.org/10.1190/segam2019-3215978.1 Plain-Language Summary KeywordsdiffractionmigrationbasementfracturesfaultsPDF DownloadLoading ...