The development of novel steels with superior resistance to CO2 corrosion using metallurgical conditioning is presented in this paper. It introduces the outcome of an extensive and systematic study looking at the influence of a wide range of alloying elements on the CO2 corrosion behaviour of low carbon steels. Microalloying elements have successfully been used to substantially improve CO2 corrosion resistance of these steels containing small amounts of chromium. The paper presents details of alloy compositions, mechanical treatments and corrosion testing. The outcome is a major development and influential in the production of steels with superior corrosion resistance for oilfield applications.

Subject
Test methods, Thin films, Composition, Corrosion rate, Microstructure, Corrosion testing, Rolling, Corrosion scales, Weldability, Film formation, Steel, Carbon, Corrosion resistance
Keywords:
Carbon and Low Alloy Steels, CO2 Corrosion, Downhole, Metallurgical Conditioning, Microalloying Elements, Oilfield Applications, Pipelines
© 2001 Association for Materials Protection and Performance (AMPP). All rights reserved. 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 the prior written permission of AMPP. Positions and opinions advanced in this work are those of the author(s) and not necessarily those of AMPP. Responsibility for the content of the work lies solely with the author(s).
2001
Association for Materials Protection and Performance (AMPP)
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