Evaluating the sources of 4D noise through controlled experiments with synthetic seismic data

Abstract

PreviousNext No AccessSEG Technical Program Expanded Abstracts 2015Evaluating the sources of 4D noise through controlled experiments with synthetic seismic dataAuthors: Elizabeth L'Heureux*Mariana GherasimElizabeth L'Heureux*BP and Mariana GherasimBPhttps://doi.org/10.1190/segam2015-5869930.1 SectionsSupplemental MaterialAboutPDF/ePub ToolsAdd to favoritesDownload CitationsTrack CitationsPermissions ShareFacebookTwitterLinked InRedditEmail Abstract We present a synthetic data study to investigate a number of causes of noise in time-lapse seismic experiments, including water velocity variations, source and receiver repeatability, and coordinate accuracy. Synthetic ocean-bottom node datasets were generated for base and monitor surveys with realistic acquisition parameters, and 4D difference images produced to study each source of noise independently. Results indicate that factors that can be most controlled during acquisition (repeatability) contribute the least to overall 4D noise. Realistically achievable node repeatability is fairly good and produces the smallest amount of noise, while sources, which are the least repeatable, produce almost three times the amount of noise in our experiment. However, variable water velocities (not corrected for during processing) produce the majority of residual noise in 4D difference images. Keywords: ocean-bottom node, modeling, acquisition, 4DPermalink: https://doi.org/10.1190/segam2015-5869930.1FiguresReferencesRelatedDetailsCited byNonrepeatability effects on time-lapse 4D seismic full-waveform inversion for ocean-bottom node dataWei Zhou and David Lumley7 July 2021 | GEOPHYSICS, Vol. 86, No. 4Non-repeatability effects on time-lapse 4D seismic full-waveform inversionWei Zhou and David Lumley30 September 20203D RTM sparse angle gathersHu Jin, Phuong Vu, Qingqing Liao, Zhou Yu, and Chunlei Chu30 September 2020Evaluating Kirchhoff migration using wave-equation generated maximum amplitude traveltimesHu Jin and John Etgen30 September 2020Evaluation and correction of sources of 4D noise using modeled ocean-bottom-node dataMariana Gherasim, Elizabeth L'Heureux, and Zenaida Lorenzo3 October 2016 | The Leading Edge, Vol. 35, No. 10Evaluation of time-shift extraction methods on a synthetic model with 4D geomechanical changesChinaemerem Kanu, Aoife Toomey, Linda Hodgson, Mariana Gherasim, Elizabeth L'Heureux, Bosen Du, and Qie Zhang3 October 2016 | The Leading Edge, Vol. 35, No. 10Realistic signal-to-noise ratios for synthetic seismic data: Calibrating with measured noise and applications to waveform inversionAndrew Brenders and Joseph Dellinger1 September 2016Investigation and correction of sources of 4D noise using modeled OBN dataMariana Gherasim, Elizabeth L'Heureux, and Zenaida Lorenzo1 September 2016Seismic Modeling Complete Session1 September 2016Time Lapse Complete Session1 September 2016 SEG Technical Program Expanded Abstracts 2015ISSN (print):1052-3812 ISSN (online):1949-4645Copyright: 2015 Pages: 5634 publication data© 2015 Published in electronic format with permission by the Society of Exploration GeophysicistsPublisher:Society of Exploration Geophysicists HistoryPublished Online: 19 Aug 2015 CITATION INFORMATION Elizabeth L'Heureux* and Mariana Gherasim, (2015), "Evaluating the sources of 4D noise through controlled experiments with synthetic seismic data," SEG Technical Program Expanded Abstracts : 5404-5408. https://doi.org/10.1190/segam2015-5869930.1 Plain-Language Summary Keywordsocean-bottom nodemodelingacquisition4DPDF DownloadLoading ...