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W
ison Offshore &Marine Ltd will deliver its
floating LNG (FLNG) vessel in 2016. It is
designed to be located in benign metocean
conditions without dry docking for 15 years. Gas will be fed
to the vessel via a pipeline, and
a dedicated floating storage unit
(FSU), with a capacity of approximately
150 000 – 170 000m
3
, will be berthed
alongside the vessel. The liquefaction
plant on board the vessel – provided by
Black & Veatch – will produce 0.5 million tpy
of LNG, whilst three buffer tanks, with a
combined capacity of 16 000m
3
, will provide
an additional storage function. An LNG carrier
will visit the FLNG vessel regularly to offtake
LNG to market.
The sour gas from the pipeline will be
separated, sweetened, and dehydrated/
mercury removed and liquefied before it is
stored in cargo tanks. The boil-off gas
(BOG) handling, waste heat recovery
system and fuel gas system, etc. are
designed in accordance with the relevant
requirements.
Fire danger
This article will describe the fire
practices on board the vessel.
Table 1 presents some fire
accidents in offshore platforms
related to gas production.
Lessons learnt from these
accidents will inspire design
improvements and help to
avoid the same tragedies as far
as possible.
1
It is estimated that two out
of every five platform-reported
accidents relate to fire and
explosions. Investigations show
that organisation and training are
critical to workers’ safety.
fire safety
practices
Fubin Liu, Wison Offshore & Marine Ltd,
China, outlines fire safety practices
on floating LNG vessels, and offers
suggestions for the path forwards.
FLNG
