Concrete gravity base structure dock flooded in Vostochny
April 27, 2005
Sakhalin Energy reached another major project milestone on the Sakhalin II Phase 2 Project. The concrete gravity base structure (CGBS) construction team in Nakhodka (mainland Russia) flooded the basin, in which two CGBS have been built.
Offshore staff
Sakhalin Energy reached another major project milestone on the Sakhalin II Phase 2 Project. The concrete gravity base structure (CGBS) construction team in Nakhodka (mainland Russia) flooded the basin, in which two CGBS have been built.
This is a significant achievement not only for Sakhalin Energy, but also for the Russian Federation, according to the Sakhalin Energy. It marks a major step forward for Russian industry into the new and technologically advanced arena of offshore oil and gas platform construction. The two CGBS are among the biggest structures ever built in Russia and the varied geometry of the legs puts them amongst the most complex concrete slip forming jobs ever undertaken. The structures are the first of their type to be built in Russia. A workforce of 2,000 Russian nationals was involved in their construction with 85% Russian content.
The first stage in the flooding process took approximately 24 hours to complete. The structures will be stabilized in the dock while leak testing occurs and then floated. When this is complete, the last 4 m of water will be pumped into the dock, and the bund wall separating the dock from the sea will be removed. The structures will then be towed the Lunskoye and Piltun fields, where they will be ballasted onto the seabed during this summer.
