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dc.contributor.authorEmmel, Benjamin
dc.contributor.authorZonetti, Simone
dc.contributor.authorRomdhane, Anouar
dc.contributor.authorDupuy, Bastien
dc.contributor.authorTorsæter, Malin
dc.description.abstractDecommissioning of platforms and permanent plugging and abandonment (P&A) of oil and gas wells is a major future financial challenge for oil producing countries. This is especially true for offshore wells in deep water, where heavyduty drilling rigs with high day rates need to be applied for well closure. Even if well monitoring is typically not done after abandonment, this is an emerging topic – which is crucial to enable reuse of reservoirs for e.g., CO2 or hydrogen storage. With this respect, it is important to find new cost-efficient ways of monitoring plugged offshore wells, where in-situ gas measurements, satellite- and/or air- based monitoring techniques are difficult to implement or not possible. In the present paper, we propose the first steps for a data-based, geophysical monitoring strategy for permanently plugged wells. The foundation is a detailed analysis of documents provided by operators towards the Norwegian authorities. Based on these open-access data, we construct numerical wells and simulate/evaluate the geophysical response of the different well barrier materials. The data can be used for future field reuse/monitoring campaigns to detect missing or damaged cement barriers in abandoned oil and gas wells. This will broaden the available sites for future large-scale CO2 storage.en_US
dc.publisherSINTEF Academic Pressen_US
dc.relation.ispartofTCCS–11. CO2 Capture, Transport and Storage. Trondheim 22nd–23rd June 2021. Short Papers from the 11th International Trondheim CCS Conference
dc.relation.ispartofseriesSINTEF Proceedings;7
dc.rightsCC BY 4.0*
dc.subjectCO2 storageen_US
dc.subjectWell integrityen_US
dc.subjectPlugging and Abandonment (P&A)en_US
dc.subjectNumerical simulationsen_US
dc.subjectGeophysical monitoringen_US
dc.titleFrom Pre-Screening to Monitoring of Plugged and Abandoned Marine Exploration Wells - Enabling Reuse of Reservoirs for Co2 Storage through Geophysical Monitoringen_US
dc.typePeer revieweden_US
dc.typeConference objecten_US
dc.rights.holder© 2021 The Authors. Published by SINTEF Academic Press.en_US
dc.subject.nsiVDP::Teknologi: 500en_US
dc.relation.projectNorges forskningsråd: 295132en_US
dc.relation.projectNorges forskningsråd: 257579en_US

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CC BY 4.0
Except where otherwise noted, this item's license is described as CC BY 4.0