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FSO

The first generation of FPSO are the so called FSO, (Floating Storage Offloading unit) is, as its name suggests, a floating storage device with no production facilities, usually for oil. FSO’s are commonly used in oil fields where it is not possible or efficient to lay a pipe-line to the shore.

 

FSRU

A Floating Storage and Regasification Unit (FSRU) is a floating LNG storage vessel with regasification and offloading facilities on top. LNG carriers moor alongside the FSRU to offload LNG to the FSRU to be vaporised. It is the floating offshore equivalent of the onshore LNG receiving terminal. As the unit is located offshore or inshore, the LNG can be supplied directly to the unit by conventional LNG carriers.

 

FRU

The FRU is also a floating LNG receiving terminal, but instead of storing the received LNG in cryogenic storage tanks in the vessel, the gas is instantly vaporized at a high rate, and is subsequently stored in subterranean reservoirs (in so-called 'salt-caverns') as a high-pressure gas at ambient temperature. This concept enables very high peak send-out rates combined with large storage capacity. The FRU is very suitable for supplying large quantities of gas into a large pipeline distribution network, as they exist in Europe. The large gas-cavern storage volume also enables the unit to function as a peak-shaving facility.

 

 

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FRU unit