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Biofilm Formation and Corrosion on Carbon Steel API 5LX60 in Clayey Soil

Résumé : Corrosion of buried pipelines is a matter of concern to the oil and gas industry since the time when carbon steel began to be widely used in these pipelines for the transportation of fluids. The microbial communities associated with biofilms promote modification in the surrounding environment and may accentuate the degradation of oil and gas pipelines causing leaks or even accidents. This work aimed to evaluate corrosion and biofilm formation in carbon steel API 5LX60 coupons buried in clayey soil from an industrial region in north-eastern Brazil. The average corrosion rates were determined by gravimetric test and the quantification of bacteria and fungi were using the Most Probable Number (MPN) and Colony Forming Units (CFU) techniques respectively. The results showed a great influence of clayey soil on corrosion rates and time of adherence for microorganisms on metal surfaces.Keywords: biofilm; corrosion; pipelines; soil; microorganisms
Domaine de référence : Biocorrosion
Auteur Queiroz Germana Arruda de, Andrade Jéssica Simões, Malta Tiago Barros Santos, Vinhas Gloria, Lima Maria Alice Gomes de Andrade, Queiroz Germana Arruda de, Andrade Jéssica Simões, Malta Tiago Barros Santos, Vinhas Gloria, Lima Maria Alice Gomes de Andrade
Année de parution : 2018.
Type de document : Article de revue.
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Ce projet est financé par le Fonds Européen de Développement Régional, la Région Normandie et le Conseil Départemental de la Manche.