Steel catenary risers

As noted earlier, the riser is an important component of an offshore structure. For a floating structure there are a variety of risers in use today, which are schematically identified in Fig. 24.14. The vertical risers are still the most common and always used for the drilling operation. These risers for drilling and production operation are pretensioned (Top Tension Risers, TTR). The production risers may have a catenary shape (Steel Catenary Riser, SCR) or may be flexible as well. Flexible risers may have additional buoyancy elements giving it an S-shape. 

Howells, H., 1995. Advances in steel catenary riser design. In Presented at DEEPTEC 95, Aberdeen. 

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