The Corrosion Influencing Factors and Its Mechanism of N80 Carbon Steel in NaCl-NaHCO3 Solution

DOI

10.2991/esm-16.2016.23How to use a DOI?

Keywords

Cl-/ HCO3- system, N80 carbon steel, corrosion behavior, chart board

Abstract

The N80 steel corrosion behavior of the produced water in Huabei oil field on behalf of NaCl/ NaHCO3 solution were studied by the corrosion weight loss method,and the fitted chart board involved salinity and anion content was built based on the least squares principle. Results show that influenced by Cl- and HCO3- control the corrosion curve involves three parts: passivating area,activated area and high corrosion area. The corrosion behavior shows that the area when Cl-% content in 16.7~37.5% was HCO3- passivating control;in 37.05 ~ 90.9% was HCO3- and Cl- coordinated control;in 90.9 ~ 100% belong to Cl- perforation control. The fitted chart board considered water salinity and anion content could determine whether the corrosion occur or not,thus may provide theoretical foundation and guidance for the next support design of anticorrosion measures with carbon steel.

Copyright

© 2016, the Authors. Published by Atlantis Press.

Open Access

This is an open access article distributed under the CC BY-NC license (http://creativecommons.org/licenses/by-nc/4.0/).

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TY  - CONF
AU  - Gang Xie
AU  - Juan Xie
AU  - Haijun Yan
AU  - Qingzhen Du
AU  - Shuangyan Zhang
AU  - Wei Zhang
AU  - Zhonghai Qin
AU  - Li Han
AU  - Wei Meng
PY  - 2016/08
DA  - 2016/08
TI  - The Corrosion Influencing Factors and Its Mechanism of N80 Carbon Steel in NaCl-NaHCO3 Solution
BT  - Proceedings of the 2016 International Conference on Engineering Science and Management
PB  - Atlantis Press
SP  - 98
EP  - 101
SN  - 2352-5401
UR  - https://doi.org/10.2991/esm-16.2016.23
DO  - 10.2991/esm-16.2016.23
ID  - Xie2016/08
ER  -