ISO/TC 67/SC 9/WG 7 - Offshore installations for LNG production or regasification

This document provides specific requirements and guidance for the design and operation of floating LNG storage and regasification units (FSRU) described in ISO 20257-1. This document is applicable to offshore, near-shore or docked FSRUs and to both new-built and converted FSRUs. This document includes requirements to the jetty when an FSRU is moored to a jetty.

This document provides requirements and guidance for the design and operation of floating liquefied natural gas (LNG) installations, including installations for the liquefaction, storage, vaporisation, transfer and handling of LNG, in order to have a safe and environmentally acceptable design and operation of floating LNG installations. This document is applicable to: — floating LNG liquefaction installations (plant) — FLNG; — floating LNG regasification installations (plant) — FSRU; — floating storage units — FSU. This document is applicable to offshore, near-shore or docked floating LNG installations. This document includes any jetty in the scope in case of docked floating LNG installations with regards to the mooring. This document briefly describes floating LNG mooring concepts. This document is applicable to both newbuilt and converted floating LNG installations, and addresses specific requirements. This document is not applicable to: — onshore LNG storage, liquefaction and/or regasification installations/plants, except for docked FSRU and/or FLNG installations; — offshore LNG plants based on non-floating structure (such as gravity based structure [GBS] principle); and — support onshore based facilities (such as support vessels, tugs, etc.). This document is not intended for design floating power generation facilities though relevant parts of this document can be used. This document is not intended to cover LNG as fuel bunkering applications.

ISO/TR 17177:2015 provides guidance for installations, equipment and operation at the ship to terminal and ship to ship interface for hybrid floating and fixed LNG terminals that might not comply with the description of "Conventional LNG Terminal" included in ISO 28460. ISO/TR 17177:2015 is intended to be read in conjunction with ISO 28460 to ensure the safe and efficient LNG transfer operation at these marine facilities. ISO/TR 17177:2015 also addresses high pressure natural gas (HPNG) at the transfer interface at facilities where liquefaction or regasification is undertaken, but does not describe requirements for the process plant generally forming part of the terminal facility. These guidelines are based around facilities that are currently in operation or under development.