Expandable seamless tubes were developed for the innovative application of in situ steel pipe expansion for casing, liner or tubing applications for the oil and gas industry. The products comply with requirements of deformability, mechanical properties in the expanded condition, burst and collapse resistances and sulfide stress cracking (SSC) resistance. The paper describes the product and its manufacturing route, and presents the properties measured in the initial, as expanded and as expanded and aged conditions. In particular, the following properties are established:

  • Very low strain ageing sensibility

  • High toughness at low temperature

  • Satisfactory collapse pressure

  • Good corrosion resistance

Subject
External surfaces, Test methods, Materials, Piping, Metal surfaces, Tubes, Micrography, Cracking resistance, Internal surfaces, Elongation, Corrosion resistance, Sulfide stress cracking, Yield strength
Keywords:
OCTG, in situ expansion, sour service, SSC resistance, seamless tubes
© 2001 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).
2001
Association for Materials Protection and Performance (AMPP)
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