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08.07.2010 09:54
© Nord Stream AG
The first pipe string of the Nord Stream Pipeline was pulled ashore on 3 July, announced the project company. Since 28 June, on the pipelay vessel “Castoro Dieci” anchored around one kilometre from the landing point, work has been underway to weld together the approximately twelve-meter-long pipes to form the first pipeline string. The pipeline, which is thus growing at up to 24 meters per hour, is pulled ashore with the aid of a heavy-duty draw winch mounted on land. The winch itself weighs 100 tonnes and in this project it is working with its maximum traction force of around 500 tonnes. This is also necessary in order to pull ashore the pipeline string, which is now around 1,000 metres long and weighs around 2,000 tonnes. Up to around 120 metres inland, this occurs with it floating in a sheet piling trench. Afterwards, the pipeline string is pulled across the ground, supported by large rollers, to the intended final position around 250 metres beyond the shoreline. Once the pipeline string has reached the correct position on land, the floats are removed.
From fall 2011, natural gas from the Nord Stream Pipeline will flow into the transfer station which is currently being built. There, it will first be purified and preheated to the right temperature. The quality, quantity and pressure of the natural gas will then be measured. In order to then transport it southward through the 470-kilometer-long Baltic Sea Pipeline Link (OPAL) via Mecklenburg-Western Pomerania, Brandenburg and Saxony to the Czech border near Olbernhau in the Erzgebirge mountains, it will be recompressed to as much as 100 bar after half of the total route south of Berlin.
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