DNV DNV-OSS-306 PDF

This specification may be adopted for the verification of parts of subsea facilities or selected project phases. \

Subsea facilities typically comprise the following systems:

- Downhole system

- Subsea wellhead and tree system (including: choke, tubing hanger and connection systems)

- Manifold, foundations and template

-Flowlines and risers (including dynamic umbilical risers)

- Subsea control umbilicals

- Subsea production control system

- Subsea processing system

- Well interventiodcompletiodworkover system

- ROT intervention system

which are applied in various configurations and tailored to each particular project's specific requirements.

This specification describes the principles of a levelled verification involvement. These principles may be applied both for planning of any need or obligations for independent external verification (third party) as well as internal company verification (second party).