For the production of gas in very corrosive environments at high temperature and pressure, several challenges were presented for the control of the corrosion threats. Different corrosion management practices have been applied to mitigate corrosion to tolerable levels. In particular, the feasible alternatives and the practices that have been chosen for the design and installation of submarine pipelines for different recent projects are described, where the main parameters that affect internal corrosion of pipelines are: wet gas, CO2 levels up to 5%, H2S levels up to 100 ppm, temperatures reaching 1200C and pressures of more than 185 bar.

Subject
External surfaces, Test methods, Materials, Predicted corrosion rate, Welding, Pipelines, Seawater, Corrosion assessment, Fluids, Corrosion inhibitors, Carbon steel, Monel alloys, High temperature
Keywords:
Corrosion Management, high pressure high temperature production, corrosion resistant alloy, corrosion inhibitor, kinetic hydrate inhibitor, polypropylene coating, galvanic anodes, riser, top of line corrosion
© 2008 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).
2008
Association for Materials Protection and Performance (AMPP)
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