Troll A platform
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The Troll A platform is a huge platform for production of gas; one of the largest and most complex engineering projects in history. Built by Norwegian Contractors for Norske Shell, the platform was a televised sensation when it was towed into the North Sea in 1996, where it is operated by Statoil.
The platform is built of reinforced concrete, using the Condeep technology, and stands on the sea floor, 303 metres below the surface of the Norwegian Sea. Gas rises from 40 wells, and is exported through a number of pipes. The overall height of the platform is 472 meters and it weighs 656,000 tons. It is the tallest structure ever moved by mankind. The base and the deck were built separately (starting in 1991-1992). They were joined while the base was partially submerged. The Troll platform was towed over 200 km from Vats, in the northern part of Rogaland, to the Troll field, 80 km north-west of Bergen. The tow took seven days.
In 2006, the 10th anniversary of Statoil was celebrated with a concert by Katie Melua held on the Troll A platform. As well as entertaining the workers on the rig, the concert set a new world record for the deepest underwater concert.
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Supertall structures (at least 300 meters in height - Other proposed structures) | |
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Antennas: | Alma-Ata Tower, Azeri TV Tower, Emley Moor, Europaturm, Gerbrandy Tower, Kiev TV Tower, Mumbai Television Tower, Saint Petersburg TV Tower, Sumida Tower (proposed), TV Tower Yerevan, WITI TV Tower, Zendstation Smilde |
Bridges: | Millau Viaduct, Strait of Messina Bridge (proposed) |
Dams: | Rogun Dam (construction), Nurek Dam, Jinping 1 Hydropower Station (construction) |
Solar towers: | Solar Tower Buronga (proposed), Ciudad Real Torre Solar (proposed) |
Electricity pylons: | Yangtze River Crossing |
Oil platforms: | Petronius Platform, Baldpate Platform, Bullwinkle Platform, Troll Platform, Gullfaks C |