DNV DNVGL-SE-0476 [ Revised ]

Introduction

DNV GL provides various services related to dynamic riser systems, where the word dynamic is referring to a non-stationary riser. In the notation dynamic riser systems, the following are included:

— metallic risers (i.e. steel, titanium)

— composite risers

— flexible pipes

— umbilicals (i.e. individual or piggy-back)

— loading hoses.

The DNV GL services include technical advice/assistance (consultancy activities) research and development services, in addition to more traditional design verification/product certification. The verification and certification services are carried out with basis in rules, standards, regulations and customer requirements.

This service specification (SE) provides criteria for and guidance to the above-mentioned services for either complete dynamic riser systems, or for separate/self-contained components of riser systems.

DNV GL is a recognised provider of technical advisory services, which can be directly connected with the development and design of deepwater riser systems.

For verification and certification, this service specification for dynamic riser systems aims at using the same principles/approaches as used in the service specification for submarine pipeline systems (DNVGLSE- 0475).

Objectives

The objectives of this document are to:

— describe DNV GL’s overall competence and experience related to dynamic riser systems.

— describe DNV GL’s technical advisory-, verification- and certification services for dynamic riser systems.