Hunting S-waves using 4C seismic data in the carbonates, offshore UAE

PreviousNext No AccessSEG Technical Program Expanded Abstracts 2014Hunting S-waves using 4C seismic data in the carbonates, offshore UAEAuthors: Karl Berteussen*Mohammed AliYuefeng SunZhao ZhangKarl Berteussen*The Petroleum InstituteSearch for more papers by this author, Mohammed AliThe Petroleum InstituteSearch for more papers by this author, Yuefeng SunTexas A & M USearch for more papers by this author, and Zhao ZhangTexas A & M USearch for more papers by this authorhttps://doi.org/10.1190/segam2014-0347.1 SectionsSupplemental MaterialAboutPDF/ePub ToolsAdd to favoritesDownload CitationsTrack CitationsPermissions ShareFacebookTwitterLinked InRedditEmail Abstract The multi-component sea-bottom seismic technology has been developed in the last several decades. The technology is often simply referred to as 4C where four-component data are acquired in marine environments consisting of pressure and three displacement components (X-Y-Z). 4C seismic data have been used as better P (pressure) wave data but there has also been a significant use of converted data; typically this has been P-wave down to the reflector and S-wave up. For the Arabian Gulf offshore UAE we typically have shallow water and very strong reflectors near the seabed. So far converted wave modes have been of little use there. In previous studies (Sun et al, 2009 and Berteussen and Sun, 2010) we have performed seismic modeling and compared the modeling results with real data. This has helped us understand the complex wave-field that often looks extremely noisy. One conclusion from that work is that we expect to find PS-S waves, i.e. waves that have been converted from P to S near the sea-bottom and then have continued as S-waves. In this work, we report on a test to extract such converted waves (PS-S). We utilize velocity models based on nearby log data and the knowledge established in our previous work to design a model dependent work-flow that extracts the PS-S. We demonstrate that it does indeed work and that we do indeed obtain S-wave records with an acceptable signal-to-noise ratio. To our knowledge this is the first time that such wave modes have been demonstrated in this region. Keywords: 4-C, carbonate, converted wave, reflectionPermalink: https://doi.org/10.1190/segam2014-0347.1FiguresReferencesRelatedDetailsCited byAnalytical analysis of the source in the shallow waters of the Arabian GulfHamdi Mahmood and Yuefeng Sun1 September 2021Impact of log-guided velocity analysis on 4-C shear wave imaging: Pressure componentHamdi Mahmood and Yuefeng Sun27 August 2018A New Method of Surface Wave Analysis and OBC Signal Enhancement in Shallow Water Environment of the Arabian Gulf using Time-Frequency-Wavenumber Polarization Analysis10 November 2014 SEG Technical Program Expanded Abstracts 2014ISSN (print):1052-3812 ISSN (online):1949-4645Copyright: 2014 Pages: 5183 publication data© 2014 Published in electronic format with permission by the Society of Exploration GeophysicistsPublisher:Society of Exploration Geophysicists HistoryPublished Online: 05 Aug 2014 CITATION INFORMATION Karl Berteussen*, Mohammed Ali, Yuefeng Sun, and Zhao Zhang, (2014), "Hunting S-waves using 4C seismic data in the carbonates, offshore UAE," SEG Technical Program Expanded Abstracts : 1883-1887. https://doi.org/10.1190/segam2014-0347.1 Plain-Language Summary Keywords4-Ccarbonateconverted wavereflectionPDF DownloadLoading ...