It was decided as part of the corrosion management programme to inject corrosion inhibitors, in order to minimize the internal corrosion threats to production facilities. These threats are induced due to the naturally occurring characteristics of production fluids with high concentration of dissolved minerals, CO2, H2S (one field) and production conditions such as high temperatures, pressures and velocities. All of these factors when combined with an increase in the amount of water produced by the facilities, when reservoirs become mature, have a great impact on the integrity of the production facilities. In addition, the number of leaks in the surface facilities, identified to be due to internal corrosion, showed an increasing trend from 1998 to 2002. Under these conditions the use of effective methods to control internal corrosion became critical when considering that some of the production facilities are approaching their original design lifetime. The corrosion inhibition implementation strategy is described, and indicates the experiences created and the practices involved in achieving efficient corrosion inhibition resulting in a reduction in the number of leaks and production deferment.

Subject
Circuits, Test methods, Water, Materials, Trends, Power generation and transmission, Leaks, Reservoirs, Corrosion assessment, Flowlines, Internal corrosion, Corrosion inhibitors, Produced water
Keywords:
Corrosion management, corrosion inhibition, mature reservoirs, leaks, deferment of production, chemical injection skids, produced water, corrosion rates
© 2005 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).
2005
Association for Materials Protection and Performance (AMPP)
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