First riser tower for Girassol installedProjects and Operations // July 13, 2001
This important milestone has been achieved within the framework of the turnkey contract awarded by TotalFinaElf. Four ships from the Stolt Offshore fleet contributed to the transport and installation operation.
The Riser Tower, a 1,300m-long bundle, was transported from the SONAMET fabrication yard in Lobito (a joint company between Stolt Offshore and SONANGOL) to the location by sub-surface tow. In a controlled operation, the bottom of the tower was lowered tothe sea floor bringing the tower to a vertical position. It was then secured to its anchored base. Two further riser towers will be installed on the Girassol field in the near future.
When the Girassol FPSO, the world's largest floating production storage and offloading unit arrives on site later this month it will be linked by flexible flowlines, supplied by NKT Flexibles, to the top of the riser towers.
The FPSO was built by the Stolt Offshore and Bouygues Offshore Mar Profundo Girassol (MPG) joint venture in South Korea.