Multi‐level continuous active source seismic monitoring (ML‐CASSM): Mapping shallow hydrofracture evolution at a TCE contaminated site

Abstract

PreviousNext No AccessSEG Technical Program Expanded Abstracts 2011Multi‐level continuous active source seismic monitoring (ML‐CASSM): Mapping shallow hydrofracture evolution at a TCE contaminated siteAuthors: Jonathan Ajo‐FranklinThomas DaleyBelinda Butler‐VeytiaJohn PetersonYuxin WuBob KellySusan HubbardJonathan Ajo‐FranklinLawrence Berkeley National LaboratorySearch for more papers by this author, Thomas DaleyLawrence Berkeley National LaboratorySearch for more papers by this author, Belinda Butler‐VeytiaURS CorporationSearch for more papers by this author, John PetersonLawrence Berkeley National LaboratorySearch for more papers by this author, Yuxin WuLawrence Berkeley National LaboratorySearch for more papers by this author, Bob KellyARS TechnologiesSearch for more papers by this author, and Susan HubbardLawrence Berkeley National LaboratorySearch for more papers by this authorhttps://doi.org/10.1190/1.3627980 SectionsSupplemental MaterialAboutPDF/ePub ToolsAdd to favoritesDownload CitationsTrack CitationsPermissions ShareFacebookTwitterLinked InRedditEmail Abstract We present results from the first deployment of a fully automated multi‐source seismic tomography system designed to monitor hydrofracture initiation and propagation in near‐surface environments. We utilized this system to track an induced fracture utilized as part of an enhanced bioremediation in a tight clay‐rich formation at a TCE contaminated site. Several hundred full tomographic datasets were acquired with a temporal resolution of 3–4 minutes; this fine sampling in time allowed us to successfully capture localized P‐wave velocity reductions associated with fracture emplacement. In addition to velocity changes, alterations in amplitude were observed as well as diffracted events and secondary scattered arrivals. This unique dataset suggests that real‐time active source imaging strategies has a potential role in mapping induced fractures both in the shallow subsurface and in deeper environments such as enhanced geothermal and shale gas deposits.Permalink: https://doi.org/10.1190/1.3627980FiguresReferencesRelatedDetailsCited bySeismic Time‐Lapse Monitoring of Near‐Surface Microbubble Water Injection by Full Waveform Inversion19 December 2022 | Geophysical Research Letters, Vol. 49, No. 24Continuous active-source seismic monitoring of brine injections directly in the main fault at Mont Terri, SwitzerlandTanner Shadoan, Jonathan Ajo-Franklin, Yves Guglielmi, Todd Wood, Michelle Robertson, Paul Cook, Florian Soom, Thomas M. 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Johnson5 December 2014 | GEOPHYSICS, Vol. 80, No. 1High-resolution characterization of a CO2 plume using crosswell seismic tomography: Cranfield, MS, USAInternational Journal of Greenhouse Gas Control, Vol. 18 SEG Technical Program Expanded Abstracts 2011ISSN (print):1052-3812 ISSN (online):1949-4645Copyright: 2011 Pages: 4424 Publisher:Society of Exploration Geophysicists HistoryPublished Online: 25 May 2012 CITATION INFORMATION Jonathan Ajo‐Franklin, Thomas Daley, Belinda Butler‐Veytia, John Peterson, Yuxin Wu, Bob Kelly, and Susan Hubbard, (2011), "Multi‐level continuous active source seismic monitoring (ML‐CASSM): Mapping shallow hydrofracture evolution at a TCE contaminated site," SEG Technical Program Expanded Abstracts : 3727-3731. https://doi.org/10.1190/1.3627980 Plain-Language Summary PDF DownloadLoading ...