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Steel Lazy Wave Riser Tests in Harsh Offshore Environment

[+] Author Affiliations
Yiannis Constantinides, Greg Kusinski

Chevron, Houston, TX

Peimin Cao, Jingyun Cheng

SBM Offshore, Houston, TX

Shixiao Fu

Shanghai Jiaotong University, Shanghai, China

Paper No. OMAE2016-54970, pp. V005T04A057; 9 pages
  • ASME 2016 35th International Conference on Ocean, Offshore and Arctic Engineering
  • Volume 5: Pipelines, Risers, and Subsea Systems
  • Busan, South Korea, June 19–24, 2016
  • Conference Sponsors: Ocean, Offshore and Arctic Engineering Division
  • ISBN: 978-0-7918-4996-5
  • Copyright © 2016 by ASME


The Steel Lazy Wave Risers (SLWR) is a newly utilized riser concept with increasing popularity due to its improved structural performance in harsh environment. However, SLWR technology is still new, and has very limited qualification test data and field experience to establish a consistent technology readiness and maturity level through industry. The present study, championed by the DeepStar® consortium, planned and executed a comprehensive test campaign of a SLWR in an offshore model basin. The objective was to better understand the global dynamic behavior of SLWR due to vessel induced motions and currents to advance the concept maturity and quantify the design margins. The paper describes the experiment and highlights key findings from the tests that are essential in addressing the challenges around SLWR design. The findings of the study progress the technology readiness level of the riser concept and provide essential guidelines for the design of SLWRs.

Copyright © 2016 by ASME



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