Observations of CO2 Corrosion-Induced Carbonate Scale Formation and Inhibition on Mild Steel

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dc.citation.firstpage3206en_US
dc.citation.issueNumber5en_US
dc.citation.journalTitleSPE Journalen_US
dc.citation.lastpage3217en_US
dc.citation.volumeNumber27en_US
dc.contributor.authorLi, Weien_US
dc.contributor.authorDai, Zhaoyien_US
dc.contributor.authorWang, Xinen_US
dc.contributor.authorKo, Saebomen_US
dc.contributor.authorPaudyal, Samiridhdien_US
dc.contributor.authorYao, Xuanzhuen_US
dc.contributor.authorLeschied, Ciannaen_US
dc.contributor.authorShen, Yu-Yien_US
dc.contributor.authorPimentel, Danielen_US
dc.contributor.authorKan, Amy T.en_US
dc.contributor.authorTomson, Masonen_US
dc.date.accessioned2022-11-03T14:38:39Zen_US
dc.date.available2022-11-03T14:38:39Zen_US
dc.date.issued2022en_US
dc.description.abstractAqueous CO2-containing environment is ubiquitous in oil and gas production. Carbonate scales (e.g., calcite) tend to form in such an environment. Meanwhile, the CO2 corrosion of mild steel infrastructure may result in corrosion-induced scales including siderite (FeCO3). Previously, siderite was generally treated as a corrosion problem rather than a scale problem. However, the relationship between the corrosion-induced scale and other metal carbonate scales on the steel surface is unclear. For example, how does siderite influence calcite deposition on the mild steel? In this study, the mild steel corrosion and mineral carbonate scaling behaviors were investigated simultaneously in the presence of various cations such as Ca2+ and Mg2+. We observed a two-layer scale structure on the mild steel surface under simulated oilfield conditions. The inner layer is an iron-containing carbonate scale such as ankerite or siderite, while the outer layer is calcite. In addition, calcite deposition at a very low saturation index was observed when the inner layer was present. Furthermore, a common scale inhibitor [diethylenetriaminepentakis(methylenephosphonic acid) or DTPMP] can effectively mitigate calcite, siderite, and ankerite formation on the steel surface, but meanwhile, aggravate the steel corrosion because of the absence of protective scale layers.en_US
dc.identifier.citationLi, Wei, Dai, Zhaoyi, Wang, Xin, et al.. "Observations of CO2 Corrosion-Induced Carbonate Scale Formation and Inhibition on Mild Steel." <i>SPE Journal,</i> 27, no. 5 (2022) SPE: 3206-3217. https://doi.org/10.2118/209821-PA.en_US
dc.identifier.doihttps://doi.org/10.2118/209821-PAen_US
dc.identifier.urihttps://hdl.handle.net/1911/113794en_US
dc.language.isoengen_US
dc.publisherSPEen_US
dc.rightsThis is an author's peer-reviewed final manuscript, as accepted by the publisher. The published article is copyrighted by SPEen_US
dc.subject.keywordwax remediationen_US
dc.subject.keywordoilfield chemistryen_US
dc.subject.keywordscale inhibitionen_US
dc.subject.keywordhydrate remediationen_US
dc.subject.keywordhydrate inhibitionen_US
dc.subject.keywordasphaltene inhibitionen_US
dc.subject.keywordscale remediationen_US
dc.subject.keywordproduction chemistryen_US
dc.subject.keywordupstream oil & gasen_US
dc.subject.keywordmild steel specimenen_US
dc.titleObservations of CO2 Corrosion-Induced Carbonate Scale Formation and Inhibition on Mild Steelen_US
dc.typeJournal articleen_US
dc.type.dcmiTexten_US
dc.type.publicationpost-printen_US
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