Corrosion performance of the new generation of low carbon Cr-containing tubing has been assessed in the actual field conditions. The data is a clear illustration of the superior corrosion performance of these steels in CO2 containing production conditions. This is supported by extensive laboratory assessment of 3%Cr steels for both sweet and sour production and water injection applications. This paper covers field experience of 3%Cr tubing and the outcome of laboratory corrosion performance assessment. The superior resistance to CO2 corrosion, satisfactory SSC performance, improved corrosion in seawater injection conditions together with more than acceptable mechanical properties, make 3%Cr steel an extremely economical choice for the completion of producers and injectors and a major alternative to the existing steels.

Subject
Water, Carbides, Corrosion rate, Sodium chloride, Seawater, Corrosion scales, Water injection, Steel, Carbon, Corrosion resistance, Elements, Linear polarization resistance, Low alloy steel
Keywords:
Carbon and Low Alloy Steels, CO2 Corrosion, Downhole, H2S Corrosion, In-field Performance, Injectors, Oilfield Applications, Producers, Seawater Corrosion
© 2004 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).
2004
Association for Materials Protection and Performance (AMPP)
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