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The model was evaluated and effects of various parameters on corrosion rates are described. Corrosion rates obtained from the model are compared with actual field and lab testing data as a basis to quantify accuracy and efficacy.
A comprehensive corrosion prediction model for multiphase oil and gas production and transmission systems was enhanced by incorporating a Top-of-Line corrosion capabilities. Key issues in development of the enhancements are discussed, including evaluation of an improved flow model implemented to facilitate accurate flow predictions. The model was evaluated with parameters commonly encountered in oil and gas production environments as well as transmission systems, and effects of various parameters on corrosion rates are described. Corrosion rates obtained from the enhanced model are compared with actual field and lab testing data as a basis to quantify accuracy and efficacy of the model.
Keywords: corrosion; prediction; top of line; TLC; multiphase flow; oil and gas; pipelines
A top-of-line corrosion (TLC) model integrated into a CO2/H2S corrosion prediction model. The TLC model determines the top of the line corrosion rate of carbon steel based on water chemistry and film-wise condensation rate. The effect of various glycols, such as Monoethylene Glycol, Diethylene glycol and Triethylene Glycol, are included.
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The work carried out to develop test methods suitable for assessing inhibitor performance in controlling TOL corrosion. New corrosion inhibitors have been developed that effectively mitigate TOL corrosion.
This work studies phase wetting regimes in three-phase oil-water-gas horizontal flow in a 0.1 m diameter carbon steel pipe in a flow loop, for flow conditions where liquid-gas slug flow pattern is predominant.