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Verification Scheme for Unbonded Flexible Pipes: Definition, Implementation and Reflection of API 17J

[+] Author Affiliations
Fabien Conti, François Migeon, Aymeric David

Bureau Veritas, Neuilly-sur-Seine, France

Paper No. OMAE2017-61916, pp. V05AT04A028; 14 pages
doi:10.1115/OMAE2017-61916
From:
  • ASME 2017 36th International Conference on Ocean, Offshore and Arctic Engineering
  • Volume 5A: Pipelines, Risers, and Subsea Systems
  • Trondheim, Norway, June 25–30, 2017
  • Conference Sponsors: Ocean, Offshore and Arctic Engineering Division
  • ISBN: 978-0-7918-5769-4
  • Copyright © 2017 by ASME

abstract

The present paper is related to the verification of unbonded flexible pipes designed and manufactured as per API 17J [1].

Back in the early nineties, in response to the needs of the industry for better quality, reliability and safety in unbonded flexible pipe products, Bureau Veritas established an innovative verification scheme relying not only on qualification testing, but also on the assessment of design methods, materials as well as manufacturing processes. This approach has proven particularly relevant considering several specificities of the flexible pipe industry: no ‘on-the-shelf’ design (each pipe being designed for project specific conditions), manufacturer specific local design methodologies, specific materials and manufacturing methods, high complexity and cost of testing.

This paper presents the verification methodology, its application as well as its ability to embody the latest normative requirements given in [1]. The specificity of the verification scheme, which consists in a breakdown between a Type Approval phase and a project phase, is also presented.

Copyright © 2017 by ASME

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