This paper gives guidelines for the material selection and corrosion control philosophies for topside process (multiphase/crude, gas, and produced water) and utility (raw seawater, de-aerated seawater, chemical injection, etc) piping and equipment. For process piping and equipment, the paper discusses CO2 internal corrosion predictions on carbon steel, as well as pitting and chloride stress cracking of corrosion resistant alloys due to high chloride contents in the produced water. For the utility systems, the paper discusses the corrosivity of the internal fluids and establishes suitable materials. The paper also addresses external corrosion control strategies based on using high durability painting systems supported by adequate surface preparation requirements.

Subject
Water, Materials, Piping systems, Carbon steel pipes, Seawater, Partial pressures, Corrosion assessment, Acidity, Produced water, Equipment, Oxygen, Carbon steel, Chlorides
Keywords:
Corrosion, Process Facilities, Oil and Gas
© 2012 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).
2012
Association for Materials Protection and Performance (AMPP)
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