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The tension and stress experienced by Steel Catenary Risers (SCRs) and Steel Lazy Wave Risers (SLWRs) increase with the length of the risers. In this work, the tension and stresses of a newly proposed Shaped Steel Lazy Wave Riser (SSLWR) is compared to that of a SLWR and Steel Catenary Riser (SCR). Simulations were carried out using OrcaFlex to determine effective tension and von Mises stress. Subsequently, a comparative study of SCR, SLWR and SSLWR at different water depth was performed. It was found that SSLWR reduced the effective tension and von Mises stress significantly by 86.28% and 99.86% respectively compared to SCR at a depth of 3000 m. While SSLWR can be used, the use of SCR and SLWR would be preferable for compliance with standards. There is scope for improving the riser performance as the depth increases to ultra-deepwater exploration.

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Comparative Analysis of Shaped Steel Lazy Wave Riser, Steel Catenary Riser and Steel Lazy Wave Riser for Ultra-Deepwater Applications

  • 会议论文

  • 发表日期：

    2026年

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  • Muhammad Zurmiftah Bin Zakaria,
  • Sathia Devi Vijaya Kumar,
  • Saravanan Karuppanan,
  • Veeradasan Perumal,
  • Mark Ovinis,
  • Chen Haoran,
  • Frank Lim

摘要

The tension and stress experienced by Steel Catenary Risers (SCRs) and Steel Lazy Wave Risers (SLWRs) increase with the length of the risers. In this work, the tension and stresses of a newly proposed Shaped Steel Lazy Wave Riser (SSLWR) is compared to that of a SLWR and Steel Catenary Riser (SCR). Simulations were carried out using OrcaFlex to determine effective tension and von Mises stress. Subsequently, a comparative study of SCR, SLWR and SSLWR at different water depth was performed. It was found that SSLWR reduced the effective tension and von Mises stress significantly by 86.28% and 99.86% respectively compared to SCR at a depth of 3000 m. While SSLWR can be used, the use of SCR and SLWR would be preferable for compliance with standards. There is scope for improving the riser performance as the depth increases to ultra-deepwater exploration.