Ultra deep drilling for oil means very hot oil and gas in subsea pipes (up to 160°C or 320°F, e.g. off Brazil). This is beyond the performance limit of currently used protective coating systems, e.g. 3-layer Polypropylene or Fusion Bonded Epoxy.

Major oil producers in the North Sea, Europe require a coating system to protect equipment such as oil/water Separator tanks and Christmas trees from corrosion at high temperature and pressures (up to 130°C and 30 bars). The coating must be sprayable by conventional equipment, will cold cure sufficiently to survive handling and transport and can be made to perform over a wide temperature range in hot seawater/oil mixtures. The ability to withstand explosive decompression failure is also required.

A two-pack, multi-functional liquid epoxy coating, modified by the inclusion of glass flakes has been developed. This paper will discuss and present results of new test methods on this coating at higher temperatures and pressures using autoclaves.

Subject
Holidays, Test methods, Coating performance, Coatings, Materials, Piping, Autoclaves, Glass flake coatings, Steel, Immersion, Electrolytes, Oil, High temperature
© 2004 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).
2004
Association for Materials Protection and Performance (AMPP)
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