id	keyword
geusb-4861	gas
geusb-4861	mud
geusb-4861	drilling
geusb-4861	gases
geusb-4861	methane
geusb-4861	headspace
geusb-4861	mud gas
geusb-4861	samples
geusb-4861	fig
geusb-4861	hydrocarbon
geusb-4861	faroe
geusb-4861	islands