Full Content is available to subscribers

Subscribe/Learn More  >

Retrofittable Stress Measurement Instruments for Deepwater Risers and Flowlines

[+] Author Affiliations
Damon Roberts

Insensys Oil & Gas Ltd., Southampton, UK

Paper No. OMAE2008-57377, pp. 317-324; 8 pages
  • ASME 2008 27th International Conference on Offshore Mechanics and Arctic Engineering
  • Volume 3: Pipeline and Riser Technology; Ocean Space Utilization
  • Estoril, Portugal, June 15–20, 2008
  • Conference Sponsors: Ocean, Offshore and Arctic Engineering Division
  • ISBN: 978-0-7918-4820-3 | eISBN: 0-7918-3821-8
  • Copyright © 2008 by ASME


Growth in the need for integrity management of deepwater assets has stimulated new approaches to integrity monitoring to be adopted by the industry. Subsea fibre optic stress sensors have been widely deployed on both shallow water and deepwater risers due to their high sensitivity, reliable operation and ease of installation. The instruments are usually attached on deck as the riser or flowline is deployed, however recently an increasing number of instruments have been retrofitted. The first ever retrofit deployment of a subsea fibre optic stress measurement instrument was to monitor the integrity of a flex joint on a deepwater export riser in the Gulf of Mexico. Another project saw bending moment and axial load sensors retrofitted to SCR wet spool pieces on a deepwater project in GoM. Further systems designed and manufactured and awaiting installation include a system for monitoring cyclic stresses in a flexible riser at the hang off, a system for monitoring fatigue accumulation in a conductor and a system to determine the location of a wax plug on a rigid flowline. This paper will present details of the above systems and will discuss their design, manufacture and varying installation methods together with test data and field measurements.

Copyright © 2008 by ASME



Interactive Graphics


Country-Specific Mortality and Growth Failure in Infancy and Yound Children and Association With Material Stature

Use interactive graphics and maps to view and sort country-specific infant and early dhildhood mortality and growth failure data and their association with maternal

Citing articles are presented as examples only. In non-demo SCM6 implementation, integration with CrossRef’s "Cited By" API will populate this tab (http://www.crossref.org/citedby.html).

Some tools below are only available to our subscribers or users with an online account.

Related Content

Customize your page view by dragging and repositioning the boxes below.

Related eBook Content
Topic Collections

Sorry! You do not have access to this content. For assistance or to subscribe, please contact us:

  • TELEPHONE: 1-800-843-2763 (Toll-free in the USA)
  • EMAIL: asmedigitalcollection@asme.org
Sign In