Abstract
This paper presents a look at casings on primarily buried pipelines used at various crossings by different utilities and industries. It discusses the different philosophies between the energy and water industries associated with the installations and subsequent monitoring of casings. Assumptions made during design phases are compared. Case studies on the evaluation of the effectiveness of different installation and operations methods and practices are presented. Standard practices will also be compared and discussed, such as why or when to use casings, ends seal practices, code requirements for venting, annulus filling or not, and removal of casings. A summary of lessons learned are included.
Subject
Costs,
Carrier pipes,
Test methods,
Water,
Piping,
Annulus,
Walls,
Pipelines,
Installation,
Flanges,
Joints,
Steel,
Maintenance
© 2019 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).
2019
Association for Materials Protection and Performance (AMPP)
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