At Bayu-Undan, the products stored and offloaded by the Floating Storage and Offtake (FSO) vessel are Propane and Butane which are often referred to as Liquified Petroleum Gas (LPG).
Propane can be used as fuel for many residential, commercial and agricultural heating appliances like cooking and hot water systems. It is also used as a propellant, refrigerant, vehicle fuel and petrochemical feedstock. Butane, when blended with propane and other hydrocarbons, can be used as a petrol component, fuel for cigarette lighters and as a propellant in aerosol sprays like deodorants.
One cargo of LPG takes 24 hours to offload to a tanker that is moored side by side to the FSO. At the start of Bayu operations, LPG offtakes occurred every week (late 2005 – 2007). Now that production is declining as we near end of field life (EOFL), there’s approximately one offtake every six weeks.
Significant planning, collaboration between teams and a focus on safety ensures the process is conducted seamlessly.
Watch this video to see an LPG offtake in action (3 mins).