A marine seismic acquisition system that provides a full ‘ghost‐free’ solution (2011)

PreviousNext No AccessSEG Technical Program Expanded Abstracts 2011A marine seismic acquisition system that provides a full 'ghost‐free' solutionAuthors: Gregg ParkesStian HegnaGregg ParkesPGS and Stian HegnaPGShttps://doi.org/10.1190/1.3627998 SectionsSupplemental MaterialAboutPDF/ePub ToolsAdd to favoritesDownload CitationsTrack CitationsPermissions ShareFacebookTwitterLinked InRedditEmail Abstract Dual sensor streamer technology has previously been developed to remove the receiver sea surface reflection (or ghost) from seismic data. However, seismic data contains two sea surface reflections, on both receiver side and source side. This paper describes a source design that in combination with dual sensor streamer technology provides a full 'ghost‐free' solution. The time and depth distributed source described in this paper is divided into sub‐sources, where each sub‐source is deployed at a specific depth and fired with specific fire time delays. The depths of the sub‐sources are chosen such that the ghost functions are complementary, avoiding deep notches in the spectrum. The main advantages with this source design are that the source can be operated with the same shot efficiency and density as a conventional source, the sub‐sources at different depths and the receivers are essentially in the same locations when the sub‐sources fire, and it provides a high signal to noise ratio (S/N) over a large bandwidth. As a direct result, the source ghost can be removed in a robust fashion. The combination of dual sensor streamers and the time and depth distributed source is an acquisition‐based solution that enables the removal of both the source and the receiver ghosts at an early stage in the pre‐processing sequence. This has an advantage in following processing steps such as de‐multiple, velocity analysis and so on, and produces ghost‐free pre‐ stack as well as post‐ stack data.Permalink: https://doi.org/10.1190/1.3627998FiguresReferencesRelatedDetailsCited BySource deghosting of coarsely sampled common-receiver data using a convolutional neural networkJan-Willem Vrolijk and Gerrit Blacquière11 March 2021 | GEOPHYSICS, Vol. 86, No. 3Adaptive estimation of the upgoing wavefield from a variable-depth recording in the case of a dynamic sea surfaceJan-Willem Vrolijk and Gerrit Blacquière22 November 2019 | GEOPHYSICS, Vol. 85, No. 1Shot repetition: An alternative seismic blending code in marine acquisitionSixue Wu, Gerrit Blacquière, and Gert-Jan Adriaan van Groenestijn11 October 2018 | GEOPHYSICS, Vol. 83, No. 6Source signature encoding of a vertical source array to separate the emitted direct wave from its ghostMoritz B. Mueller, David F. Halliday, Dirk-Jan van Manen, and Johan O. A. Robertsson31 May 2018 | GEOPHYSICS, Vol. 83, No. 4Imaging Normal Faults Using Dual Sensor Streamers23 February 2018Wave equation processing using finite-difference propagators, Part 2: Deghosting of marine hydrophone seismic dataJohan O. A. Robertsson and Lasse Amundsen8 October 2014 | GEOPHYSICS, Vol. 79, No. 6Recent seismic technologies for sub-basalt imagingJournal of the Japanese Association for Petroleum Technology, Vol. 79, No. 1Low-frequency seismic deghostingLasse Amundsen and Hongbo Zhou20 March 2013 | GEOPHYSICS, Vol. 78, No. 2Broadband seismic data — The importance of low frequenciesFons ten Kroode, Steffen Bergler, Cees Corsten, Jan Willem de Maag, Floris Strijbos, and Henk Tijhof20 March 2013 | GEOPHYSICS, Vol. 78, No. 2Utilizing short offset data from a 3D exploration survey for regional seabed morphology and geohazard mapping in Makassar straits, Indonesia.Mazin Farouki, Francesco Paone, Andrea Marceglia, Francesca Felappi, Claudia Monti, Davide Della Moretta, and Nikolay Nenov25 October 2012References29 April 2013 SEG Technical Program Expanded Abstracts 2011ISSN (print):1052-3812 ISSN (online):1949-4645Copyright: 2011 Pages: 4424 Publisher:Society of Exploration Geophysicists HistoryPublished: 25 May 2012 CITATION INFORMATION Gregg Parkes and Stian Hegna, (2011), "A marine seismic acquisition system that provides a full 'ghost‐free' solution," SEG Technical Program Expanded Abstracts : 37-41. https://doi.org/10.1190/1.3627998 Plain-Language Summary PDF DownloadLoading ...