The scope A client asked us to design a pair of clamps for two large exible subsea risers that were to be deployed in the North Sea and pulled into an FPSO. The clamps were dual purpose, acting as sea fastenings to lash the rigid riser ends to the vessel during transport and lifting aids when the riser was over-boarded. To ensure the design met all the project requirements, the scope of work diversied to include verication of the riser design. The solution We set to work identifying the optimum locations on the 12m long riser ends to attach a clamp. Our team determined the worst case forces the riser end could be subject to during over-boarding using OrcaFlex. The analysis fed into the design process resulting in a pair of half shells that were bolted together around the riser ends by

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