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DNVGL-RU-OU-0103

Floating LNG/LPG production, storage and loading units

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Organization: DNVGL
Publication Date: 1 July 2018
Status: inactive
Page Count: 128
scope:

These rules cover classification of floating offshore objects for the following services:

- LNG/LPG production

- LNG/LPG storage and offloading

- LNG/LPG loading (buoy).

Although this document refers primarily to liquefied natural gas (LNG) and liquefied petroleum gas (LPG), the principles herein may also be used for other offshore gas installations such as those involving primarily compressed natural gas (CNG), and gas to liquid (GTL) products.

A floating offshore installation which processes hydrocarbons and refrigerates gas to produce LNG will be termed here an LNG FPSO (LNG floating production, storage and offloading unit). LNG FPSOs are also commonly termed FLNG. The installation may be fed gas directly from a gas well or a gas network or may process associated gas in conjunction with oil production. Such units may also produce, store and offload quantities of LPG and condensate.

A floating offshore installation which processes hydrocarbons and refrigerates gas to produce LPG will be termed here an LPG FPSO (LPG floating production, storage and offloading unit). The installation may be fed gas directly from a gas well or a gas network or may process associated gas in conjunction with oil production. Such units may also produce, store and offload quantities of condensate.

An offshore installation which receives and regasifies LNG is termed an FSRU (floating storage and regasification unit). The storage and hull may generally follow the requirements to a storage unit described in Ch.2 Sec.4. The regasification plant and safety systems may follow the requirements in DNVGL-RU-SHIP Pt.6 Ch.4 Sec.7 on regasification vessels. FSRUs which follow a ship class regime may refer to DNVGL-RU-SHIP Pt.5 Ch.7 and DNVGL-RU-SHIP Pt.6 Ch.4 Sec.7.

Principles, procedures and requirements for retention of class during operation of the unit are covered DNVGL-RU-OU-0300.

Document History

July 1, 2019
Floating LNG-LPG production, storage and loading units
These rules cover Classification of floating offshore objects for the following services: — LNG/LPG production — LNG/LPG storage and offloading — LNG/LPG loading (buoy). Although this document...
DNVGL-RU-OU-0103
July 1, 2018
Floating LNG/LPG production, storage and loading units
These rules cover classification of floating offshore objects for the following services: — LNG/LPG production — LNG/LPG storage and offloading — LNG/LPG loading (buoy). Although this document...
January 1, 2018
Floating LNG/LPG production, storage and loading units
These rules cover classification of floating offshore objects for the following services: — LNG/LPG production — LNG/LPG storage and offloading — LNG/LPG loading (buoy). Although this document...
January 1, 2017
Floating LNG/LPG production, storage and loading units
FOREWORD DNV GL rules for classification contain procedural and technical requirements related to obtaining and retaining a class certificate. The rules represent all requirements adopted by the...
April 1, 2016
Floating LNG/LPG production, storage and loading units
FOREWORD DNV GL rules for classification contain procedural and technical requirements related to obtaining and retaining a class certificate. The rules represent all requirements adopted by the...
July 1, 2015
Floating LNG/LPG production, storage and loading units
A description is not available for this item.

References

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