NEN-EN-ISO 19904-1:2004 Ontw. en

Petroleum and natural gas industries - Floating offshore structures - Part 1: Monohulls, semi-submersibles and spars

  • This norm is withdrawn since 29-11-2006


About norm

Status Withdrawn
Number of pages 179
Committee Gas- en oliewinning en -productie
Published on 01-12-2004
Language English
This International Standard provides requirements and guidance for the structural design and/or assessment of floating offshore platforms used by the oil and gas industry to support the following functions: - production; - storage and offloading; - drilling and production; - production, storage and offloading; - drilling, production, storage and offloading. The provisions of this International Standard do not apply to the structural systems of Mobile Offshore Units (MOUs). These include, among others: -floating structures intended primarily to perform drilling and/or well intervention operations (often referred to as MODU); - floating structures used for offshore construction operations (e.g. crane barges or pipelay barges), for temporary or permanent offshore living quarters (floatels), or for transport of equipment or products (e.g. transportation barges, cargo barges). For these structures, reference is made to relevant RCS rules. This International Standard specifies requirements applicable to all possible life-cycle stages of the structures defined above, such as: a) design, construction and installation of new structures, including requirements for inspection, integrity management and future removal; b) structural integrity management covering inspection and assessment of structures in-service; c) conversion of structures for different use (e.g. a construction vessel converted to a production platform) or reuse at different locations. The speed of offshore technology evolution often far exceeds the pace at which the industry achieves substantial agreement on innovation in structural concepts, structural shapes or forms, structural components and associated analysis and design practices, which are continuously refined and enhanced by designers. On the other hand, International Standards can only capture explicit industry consensus, which typically requires maturation and acceptance of new ideas. Consequently, advanced structural concepts can be, at times, not completely covered by the provisions of this International Standard. In other cases, specific requirements stated in this International Standard can be found not to apply to all or part of a structure under design. In such events, the design shall be based upon the principles underpinning this International Standard and shall achieve a level of safety equivalent, or superior, to the level implicit in this International Standard. The following types of floating platforms are considered within the context of this part of this International Standard: - monohulls (ship-shaped structures and barges); - semi-submersibles; - spars. This International Standard applies to steel floating structures. The principles documented herein are, however, considered to be generally applicable to structures fabricated in materials other than steel.


ICS-code 75.180.10
Dutch title Aardolie- en aardgasindustries - Drijvende buitengaatse constructies - Deel 1: Boten met één romp, semi-afzinkbare pontons
English title Petroleum and natural gas industries - Floating offshore structures - Part 1: Monohulls, semi-submersibles and spars
Replaced by

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