Pdf: Dnvglstn001

A: It depends on the project. If a Marine Warranty Surveyor (MWS) or flag state classification society requires it, then yes. For smaller operations (e.g., <200 tonnes in sheltered water), a simplified approach may be accepted, but the PDF still provides best-practice guidance.

These provisions ensure that operations are not planned on guesswork but on probabilistic and deterministic engineering models. dnvglstn001 pdf

When lowering a wellhead through the splash zone, the standard mandates a slamming load calculation. The PDF includes a closed-form equation that depends on lowering speed, wave particle velocity, and the object’s area. If the engineer ignores this and the object slams into a wave trough, wire tension could spike to breaking point. A: It depends on the project