Cavern under way
The first blast took place yesterday, 28 November, in the mouth of tunnel which will be the new cavern for the storage of liquid propane at the Statoil-operated Mongstad refinery near Bergen.
The Vestprosess partnership signed a contract on 12 November with the Norwegian company Mika to build the cavern.
Last year the existing cavern was affected by a rock fall, which led to severe ice formation and reduced storage capacity. The new cavern will be about the same size as the old one – 33 metres high, 20 metres wide and with a storage capacity of 60,000 cubic metres.
The new cavern will be ready in November 2003.