Semi-continuous electrical resistivity tomography monitoring for CO2 injection at the CaMI Field Research Station, Newell County, Alberta, Canada

PreviousNext No AccessFirst International Meeting for Applied Geoscience & Energy Expanded AbstractsSemi-continuous electrical resistivity tomography monitoring for CO2 injection at the CaMI Field Research Station, Newell County, Alberta, CanadaAuthors: Marie MacquetDonald C. LawtonDennis RippeCornelia Schmidt-HattenbergerMarie MacquetCarbon Management Canada (CMC)Search for more papers by this author, Donald C. LawtonCarbon Management Canada (CMC)Search for more papers by this author, Dennis RippeGFZ German Research Centre for GeosciencesSearch for more papers by this author, and Cornelia Schmidt-HattenbergerGFZ German Research Centre for GeosciencesSearch for more papers by this authorhttps://doi.org/10.1190/segam2021-3582666.1 SectionsSupplemental MaterialAboutPDF/ePub ToolsAdd to favoritesDownload CitationsTrack CitationsPermissions ShareFacebookTwitterLinked InRedditEmail AbstractCMC’s CaMI Field Research hosts a broad range of geophysical and geochemical instruments used to quantify the detection threshold for different monitoring technologies for CO2 injected and stored in the subsurface. In this paper, we show results from the borehole-borehole Electrical Resistivity Tomography (ERT) method. We present the method and the dataset, the time-lapse inversion results, and the future work. The raw data shows a good correlation between resistivity index (ratio between baseline resistivity and monitor resistivity) and the CO2 injection history. The inversion results show two zones with resistivity increase: at 300 m depth (corresponding to the injection zone) and at 280 m depth (corresponding to a coal zone). The CO2 saturation estimated from the inverted resistivity models is in good correlation with the CO2 reservoir modelling. Between the two high-resistivity zones is a zone where the resistivity decreases. A full comprehensive analysis of the system complexity (CO2 injection, dissolution, geochemical processes, CO2 migration) and their impacts on the resistivity are still being addressed to fully understand these results.Keywords: electrical/resistivity, 4D, monitoring, sequestration, borehole geophysicsPermalink: https://doi.org/10.1190/segam2021-3582666.1FiguresReferencesRelatedDetails First International Meeting for Applied Geoscience & Energy Expanded AbstractsISSN (print):1052-3812 ISSN (online):1949-4645Copyright: 2021 Pages: 3561 publication data© 2021 Published in electronic format with permission by the Society of Exploration GeophysicistsPublisher:Society of Exploration Geophysicists HistoryPublished: 01 Sep 2021 CITATION INFORMATION Marie Macquet, Donald C. Lawton, Dennis Rippe, and Cornelia Schmidt-Hattenberger, (2021), "Semi-continuous electrical resistivity tomography monitoring for CO2 injection at the CaMI Field Research Station, Newell County, Alberta, Canada," SEG Technical Program Expanded Abstracts : 362-366. https://doi.org/10.1190/segam2021-3582666.1 Plain-Language Summary Keywordselectrical/resistivity4Dmonitoringsequestrationborehole geophysicsPDF DownloadLoading ...