The corrosion behavior of steels with different chromium contents, N80, L80, P110, L80-1%Cr, L80-3%Cr and L80-13%Cr in formation water containing CO2 was investigated by means of electrochemical measurements and tests of weight loss in an autoclave at HTHP. The characteristics of corrosion scale were characterized by X-ray diffraction. Effects of chromium concentration on the corrosion behavior of these carbon steel were discussed. The results of the electrochemical tests for both resistance to linear polarization and potentiodynamic polarization in a glass cell at 50 °C, atmospheric pressure and saturated with CO2 and gravimetric measurements in an autoclave at 50 °C, 100 rpm and partial pressure of 32 psi of CO2 and pressure total pressure of 600 psi with N2 as balance, shows that the chromium content in percentages equal to or less than 1% did not represent an influence on the performance of the evaluated steels on the mechanisms and corrosion rate.

Subject
Air pressure, Materials, Materials performance, Autoclaves, Chromium, Partial pressures, Tubing, Corrosion behavior, Steel, Carbon steel, Corrosion protection, Corrosion resistance, Polarization resistance
Keywords:
corrosion, pitting, CO2, carbon steel
© 2023 Association for Materials Protection and Performance (AMPP) and ABRACO. All rights reserved. This work is protected by both domestic and international copyright laws. No part of this publication may be reproduced, stored in a retrieval system, or transmitted, in any form or by any means (electronic, mechanical, photocopying, recording, or otherwise) without prior written permission. Positions and opinions advanced in this work are those of the author(s) and not necessarily those of AMPP or ABRACO. Responsibility for the content of the work lies solely with the author(s).
2023
Association for Materials Protection and Performance (AMPP)
You do not currently have access to this content.