Final article in a series of five articles by Bill Campbell, retired HSE Group Auditor, Shell International, about risks relating to the Shell Prelude FLNG project.
Prelude FLNG risks are on par with modern offshore oil and gas facilities say Shell – but are they? Let’s discuss
With the implementation of the recommendations post Piper A, turned quickly into legislation, the potential consequences of hydrocarbon releases have been markedly reduced, but Floating FLNG facilities cannot comply, other than that front end gas feed from the reservoir will be shut in and the process gas flared, huge amounts of volatile hydrocarbon liquids remain stored in the hull, which is also the primary structure supporting the process, utilities and the living quarters.
Prelude for example has in its hull, tanks with a capacity to hold 220,000 m3 of LNG, when the cryogenic liquid is returned to gas this equates to 132 million m3 of methane. It also has capacity for 90,000 m3 of LPG and 126,000 m3 of Condensate, with an overall capacity Shell states equivalent to 175 Olympic swimming pools. read more
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