The use of corrosion resistant alloys to fight bottomhole corrosion due to the presence of H2S and CO2 has led to the need of testing such alloys in all expected conditions, typically during acidizing stimulation jobs, which determine very severe corrosion either in terms of general or localized attacks.

While the behavior of carbon and low alloy steels in inhibited stimulation conditions are well known, few data are available on the corrosion behavior of corrosion resistant alloys, primarily at high temperatures.

This paper deals with corrosion behavior of a duplex stainless steel, some high austenitic stainless steels and a nickel-base alloy in 28% HCl acidizing solutions either in inhibited or uninhibited conditions, at 130°c. Weight loss, crevice corrosion and stress corrosion cracking tests were carried out for 6 and 24 hours, with amine-base commercial corrosion inhibitors, originally formulated for carbon steel.

Subject
Acid inhibitors, Materials, Corrosion resistant alloys, Corrosion rate, Crevices, Corrosion behavior, Crevice corrosion, Weight loss, Corrosion inhibitors, Duplex stainless steel, Stainless steel, Stress corrosion cracking, Low alloy steel
© 1987 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).
1987
Association for Materials Protection and Performance (AMPP)
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