Standards › Riser

Catenary riser

Catenary riser shape, layback and top tension

Ask Deckhand to work out the shape, layback and top tension of a catenary riser or line from its weight and the water depth.

Run it on Open Deck

What you can ask it to do

  • Work out the catenary shape, layback and touchdown point of a riser or line.
  • Compute the top tension and the bottom tension.
  • Screen how shape and top tension move with weight, depth or current.

Related standards

Catenary Steel catenary riser (SCR) Top tension Layback Touchdown

Part of Subsea, Pipelines & Integrity · see the platform engine

Questions

What does a catenary calculation give me?

The static shape of a riser or line hanging as a catenary — the layback, the touchdown point, and the top and bottom tensions — for a given submerged weight and water depth.

What is it used for?

First-pass sizing of steel catenary risers and similar lines, and a sanity check before a full dynamic analysis.

Run Catenary riser on your own inputs

Open Deck is free — bring your numbers and check the result against your own methods.

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