Construction contract signed for second line of TurkStream’s offshore section

20 February 2017

Today South Stream Transport B.V. and Allseas Group S.A. signed in Amsterdam a contract to build the second line of the TurkStream gas pipeline’s offshore section. The document is signed within the framework of an option envisaged by the contract for the first line signed in 2016.

Allseas will use the world’s largest construction vessel — Pioneering Spirit for laying 930 kilometers of pipes of the second line across the seabed as well as for carrying out works for the first line.


The TurkStream Project will provide reliable energy supplies for Turkey and south-east Europe, by providing a direct connection to the large reserves of natural gas in Russia. It will consist of an offshore section through the Black Sea and two onshore pipelines to transport the gas to the Turkish grid and other European markets.

The TurkStream Offshore Pipeline will consist of two parallel pipelines running through over 930 kilometres across the Black Sea at a maximum depth of 2200 metres. The pipelines will start near Anapa, on the Russian coast, and come ashore on the Turkish coast some 100 kilometers west of Istanbul, near the village of Kiyikoy. Each offshore pipeline will have a transport capacity of 15.75 bcm per year. The TurkStream Offshore Pipeline is being implemented by South Stream Transport B.V., an Amsterdam-based subsidiary of Gazprom.

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