LNG Carrier Conversion / Conversion-Based FSRUConventionalEducational data

LNG carrier conversion / conversion-based FSRU

An existing carrier hull reused as floating import infrastructure.

Class overview

A conversion-based FSRU takes an existing LNG carrier and adds regasification topsides, mooring modifications and send-out systems. The containment system, hull condition and machinery are inherited from the original vessel, so each conversion is a distinct engineering case. Some conversions retain the ability to return to trading service; others do not.

Classification

Operational role: LNG Carrier Conversion / Conversion-Based FSRU
Containment system: GTT NO96 Membrane · GTT Mark III Membrane · Moss / Spherical Self-Supporting Type B
Tank geometry: Inherited from the original carrier — membrane prismatic or spherical
Capacity class: Conventional — indicative: approximately 125,000–180,000 m³
Propulsion options: Steam turbine · DFDE / TFDE
BOG management: BOG as fuel · Gas combustion unit

Key systems

ContainmentOriginal cargo containment system retained after survey and repair

RegasificationAdded vaporisers, high-pressure pumps and send-out metering

MooringJetty, side-by-side or turret arrangement selected for site conditions

Operational environment

Import projects reusing an existing LNG carrier hull as floating regasification capacity.

Safety and operational considerations

The converted unit inherits the containment system, hull condition and age of the original carrier.
Added regasification topsides change weight distribution, power demand and hazardous-area layout.
Some conversions retain the ability to return to trading service, subject to project design.

Strengths

Reuses an existing hull and containment system
Can support phased import capacity where onshore terminals are not yet built
May retain carrier capability depending on the conversion scope

Considerations

Inherits the age, condition and containment characteristics of the original ship
Added topsides change weight distribution, power demand and hazardous-area layout
Send-out capability and mooring limits are entirely project-specific

Specifications

Indicative capacity: 125K–170K m³
Typical application: Import projects adding floating regasification capacity from an existing hull
Hull-space efficiency: Inherited from the original vessel, with deck space reassigned to topsides
Infrastructure requirements: Mooring or jetty arrangement, high-pressure send-out connection and pipeline tie-in
Boil-off rate (indicative): 0.15% per day
Service speed (indicative): 17 knots
Length overall (indicative): 285 m
Beam (indicative): 44 m
Draft (indicative): 11.5 m
First in service: 2007

Typical deployment

Moored at an import location
Occasional relocation voyages

Learning journey

Tech: floating infrastructure Tech: safety systems fsru regasification membrane tank moss tank Article: fsru import infrastructure

Related videos: coming from the @ossati channel.

Technical information

Status: Educational overview — editorial review required; Seeded educational summary awaiting editorial and technical review.
Last reviewed: 15 September 2026
Source status: Sources pending editorial review.

Technical parameters are indicative and may vary by vessel design, generation, shipyard, operator and intended service.