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- W4200553829 abstract "PreviousNext No AccessSixth International Conference on Engineering Geophysics, Virtual, 25–28 October 2021Borehole seismic monitoring of CO2 storage using fiber-optic sensors: Otway Project exampleAuthors: Roman PevznerBoris GurevichRoman IsaenkovPavel ShashkinKonstantin TertyshnikovSinem YavuzJulia CorreaStanislav GlubokovskikhTodd WoodBarry FreifeldPaul BarracloughRoman PevznerCurtin UniversitySearch for more papers by this author, Boris GurevichCurtin UniversitySearch for more papers by this author, Roman IsaenkovCurtin UniversitySearch for more papers by this author, Pavel ShashkinCurtin UniversitySearch for more papers by this author, Konstantin TertyshnikovCurtin UniversitySearch for more papers by this author, Sinem YavuzCurtin UniversitySearch for more papers by this author, Julia CorreaLawrence Berkeley National LaboratorySearch for more papers by this author, Stanislav GlubokovskikhLawrence Berkeley National LaboratorySearch for more papers by this author, Todd WoodLawrence Berkeley National LaboratorySearch for more papers by this author, Barry FreifeldClass VI SolutionsSearch for more papers by this author, and Paul BarracloughCO2CRCSearch for more papers by this authorhttps://doi.org/10.1190/iceg2021-047.1 SectionsAboutPDF/ePub ToolsAdd to favoritesDownload CitationsTrack CitationsPermissions ShareFacebookTwitterLinked InRedditEmail Abstract Continuous time-lapse multi-well vertical seismic profiling (VSP) is a cost-effective option for monitoring CO2 underground storage. Such an approach was tested at the CO2CRC Otway site by monitoring of 15,000 t of supercritical CO2 injected into an aquifer 1,500 m deep with nine permanent seismic sources (surface orbital vibrators or SOVs) and five downhole fibre-optic receivers. This continuous monitoring is complemented by multi-well 4D VSP using a conventional vibroseis source and the same DAS receivers, which included baseline and two monitor surveys after injection of 4,000 and 12,000 t of CO2. The continuous DAS-SOV monitoring detected and tracked the growth of the areal CO2 plume by mapping changes of reflection amplitudes. The plume is also detected by time-lapse changes of reflection amplitudes in multi-well 4D VSPs. The plume images obtained from continuous offset VSP and 4D VSP are broadly consistent with each other, but with some differences, which serve as a measure of uncertainty of 4D VSP images. Keywords: fiber-optic sensors, time-lapse, permanent reservoir monitoring, geophones, environmentalPermalink: https://doi.org/10.1190/iceg2021-047.1FiguresReferencesRelatedDetails Sixth International Conference on Engineering Geophysics, Virtual, 25–28 October 2021ISSN (online):2159-6832Copyright: 2021 Pages: 341 publication data© 2021 Published in electronic format with permission by the Society of Exploration GeophysicistsPublisher:Society of Exploration Geophysicists HistoryPublished Online: 24 Dec 2021 CITATION INFORMATION Roman Pevzner, Boris Gurevich, Roman Isaenkov, Pavel Shashkin, Konstantin Tertyshnikov, Sinem Yavuz, Julia Correa, Stanislav Glubokovskikh, Todd Wood, Barry Freifeld, and Paul Barraclough, (2021), Borehole seismic monitoring of CO2 storage using fiber-optic sensors: Otway Project example, SEG Global Meeting Abstracts : 177-180. https://doi.org/10.1190/iceg2021-047.1 Plain-Language Summary Keywordsfiber-optic sensorstime-lapsepermanent reservoir monitoringgeophonesenvironmentalPDF DownloadLoading ..." @default.
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- W4200553829 title "Borehole seismic monitoring of CO2 storage using fiber-optic sensors: Otway Project example" @default.
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