This paper presents the outcome of a comprehensive program of work to establish the suitability and performance of candidate inhibitor packages for downhole production applications. It covers both CO2 and H2S corrosion performance of carbon and low alloy steel tubulars in simulated field conditions. Inhibitor performance was established through using a number of inhibitor selection methods by systematic determination of efficiency, persistency and chemical compatibility of both corrosion and combined corrosion/scale inhibitor packages. The results have led to determination of effective means of corrosion mitigation to enable wider uses of carbon and low alloy steels for downhole applications.

Subject
Test methods, Crude oil inhibition, Water, Inhibitor performance, Corrosion rate, Bubbling, Inhibitor treatment, Inhibition efficiency, Corrosion inhibitors, Steel, Crude, Corrosion protection, Oil
Keywords:
carbon steel, low alloy steel, inhibitors, sour environment
© 2003 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).
2003
Association for Materials Protection and Performance (AMPP)
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