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Performance Of Corrosion Inhibitors Under High CO2 Partial Pressures

Picture for Performance Of Corrosion Inhibitors Under High CO2 Partial Pressures
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Product Number: 51321-16735-SG
Author: P. Mekarbane; G. Larrouy; F. Moser; D. Alonzo; B. Allard-Breton; F. Bernard
Publication Date: 2021
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Corrosion inhibitors are widely used to protect carbon steel facilities in the oil and gas production industry. However, field conditions can vary significantly and become more challenging with field maturation. One of the challenges is to mitigate corrosion at high CO2 partial pressure. Laboratory experiments were performed in a high pressure and high temperature autoclave to study the influence of CO2 partial pressures between 1 and 10 bar on the corrosion rate of unalloyed carbon steel. Various experimental parameters were taken into account, such as water chemistry, temperature and CO2 partial pressure. Weight loss coupons and electrochemical techniques were used to evaluate the corrosion rate. Corrosion inhibitors were tested and showed good performance in the most corrosive conditions. This lead to a better understanding of corrosion mechanisms under different CO2 partial pressures and the selection of the best chemistries for corrosion mitigation.

Corrosion inhibitors are widely used to protect carbon steel facilities in the oil and gas production industry. However, field conditions can vary significantly and become more challenging with field maturation. One of the challenges is to mitigate corrosion at high CO2 partial pressure. Laboratory experiments were performed in a high pressure and high temperature autoclave to study the influence of CO2 partial pressures between 1 and 10 bar on the corrosion rate of unalloyed carbon steel. Various experimental parameters were taken into account, such as water chemistry, temperature and CO2 partial pressure. Weight loss coupons and electrochemical techniques were used to evaluate the corrosion rate. Corrosion inhibitors were tested and showed good performance in the most corrosive conditions. This lead to a better understanding of corrosion mechanisms under different CO2 partial pressures and the selection of the best chemistries for corrosion mitigation.

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51318-11623-The Effect of High Partial Pressure of CO2 on the Corrosion Mechanism of Carbon Steel in H2O-CO2 Systems

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Author: Tatiana C. Almeida / Oscar R. Mattos / Rogaciano M. Moreira / Merlin C. E. Bandeira
Publication Date: 2018
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The corrosion mechanism of X65 carbon steel was evaluated in water environment by increasing CO2 partial pressure from 1 bar at 24 °C to 110 bar at 40 °C, reaching conditions that include water saturated with supercritical CO2.
Picture for 03345 CORROSION AT HIGH CO2 PRESSURE
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03345 CORROSION AT HIGH CO2 PRESSURE

Product Number: 51300-03345-SG
ISBN: 03345 2003 CP
Author: S. M. Hesjevik, S. Olsen, Statoil, Marion Seiersten
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Picture for 05551 CO2 Corrosion Prediction Model - Basic
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05551 CO2 Corrosion Prediction Model - Basic Principles

Product Number: 51300-05551-SG
ISBN: 05551 2005 CP
Author: Stein Olsen, Statoil ASA; Anne Marie Halvorsen, Norsk Hydro ASA; Per G. Lunde, Norsk Hydro Americas;
Publication Date: 2005
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The NORSOK M-506 is an empirical model based on experiments undertaken in a single phase water flow loop. The data is from experiments with low content of iron ions in the water phase, and the model is thus regarded to give a fair representation of the maximum corrosion rate in a CO2 corrosion controlled system.
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