Print Email Facebook Twitter Corrosion studies on casing steel in CO2 storage environments Title Corrosion studies on casing steel in CO2 storage environments Author Zhang, X. Zevenbergen, J.F. Benedictus, T. Publication year 2013 Abstract The corrosion behavior of casing steel N80 in brine plus CO2 was studied in autoclave to simulate the CO2 storage environment. The brine solution used in the study contained 130 g/l NaCl, 22.2 g/l CaCl2 and 4 g/l MgCl2. The CO2 was charged in the autoclave at different pressures (60, 80 and 100 bar) and at 45°C. The corrosion rate was measured using electrochemical and mass loss measurements. The surface of the samples after exposure to CO2 and brine was analyzed using SEM, EDS and XRD. The polarization results show that the corrosion rate of N80 steel in the brine plus CO2 is 6 mm/y in 1 hour and 0.3 mm/y after one week at 80 bar and 45C°. The corrosion of the steel at other pressures shows a Subject Mechatronics, Mechanics & MaterialsMPC - Materials Performance CentreTS - Technical SciencesMaterialsIndustrial InnovationCarbon dioxideCasing steelCorrosionPolarizationWell integrity To reference this document use: http://resolver.tudelft.nl/uuid:17dd31dc-a529-4183-9cda-c8b752378d90 TNO identifier 533570 Publisher Elsevier, Amsterdam ISSN 1876-6102 Source Energy Procedia, 3147-3159 Document type article Files To receive the publication files, please send an e-mail request to TNO Library.