Investigation of inhibition processes at sand-deposited surfaces
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CO2 corrosion of carbon steel in the presence of deposits is a major concern in the oil and gas industry as the deposits impair effective corrosion inhibition and promote localized corrosion. This study shows that the extent of corrosion is affected by the nature of the mineral deposit. Chukanovite and siderite were identified as corrosion products formed at sand-deposited carbon steels. Sulphur-containing organic compounds showed low affinity for sand and effectively inhibited general corrosion at sand-deposited steels.
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Chukanovite (Fe2(OH)2Co3) identified as a corrosion product at sand-deposited carbon steel in CO2-saturated brinePandarinathan, Vedapriya; Lepkova, Katerina; Van Bronswijk, Wilhelm (2014)Chukanovite (Fe2(OH)2CO3) has been identified by synchrotron-sourced infrared microspectroscopy as the main corrosion product at the sand-deposited carbon steel corroded in CO2-saturated brine at 80 °C. Siderite has been ...
Pandarinathan, Vedapriya; Lepkova, Katerina; Bailey, Stuart; Gubner, Rolf (2013)The inhibition performance of thiobenzamide (TB) against the under deposit corrosion of carbon steel in CO2-saturated, chloride-containing environment has been investigated. TB concentrations were varied from 10 - 200 ppm ...
Aggressive corrosion of steel by a thermophilic microbial consortium in the presence and absence of sandSuarez, Erica; Lepkova, Katerina; Kinsella, Brian; Machuca Suarez, Laura (2019)Microbiologically influenced corrosion of carbon steel by a thermophilic microbial consortium was investigated in the presence and absence of sand using surface analysis techniques and 16S rRNA gene sequencing. The activity ...