Technip and Subsea 7 Win $1.2 Billion in Deepwater Projects Offshore Ghana

Seven Borealis, image: Aerolin

Technip and Subsea 7 will be working together offshore Ghana on a USD $1.23 billion SURF project for Tullow Ghana announced today.

The Tweneboa-Enyenra-Ntomme Development (TEN) Project, located in the deepwater Tano Contract Area, 60 kilometers off the coast of Ghana at a water depth reaching up to 2,000 meters, will consist of 24 development wells connected through subsea infrastructure to a Floating, Production, Storage and Offloading vessel (FPSO), moored in approximately 1,500 meters of water.

Technip and Subsea 7 will be responsible for the engineering, fabrication, and installation of the subsea architecture of this project, including:

9 flexible risers (Technip)
3 flexible flowlines (Technip)
12 flexible spools totalling 48 kms (Technip)
33 kilometers of water injection and gas injection rigid flowlines (Technip)
63 kilometers of static and dynamic umbilicals (Technip)
10 well rigid jumpers and 6 prefabricated rigid jumpers (Technip)
36 kilometres of pipe-in-pipe flowlines (Subsea 7)
Flowline termination structures (Subsea 7)
Foundation piles (Subsea 7)
Transport and installation of manifolds, riser bases and flying leads (Subsea 7)

Technip’s share of the project is about USD $730 milllion and Subsea 7’s is around $500 million.

Subsea 7 notes that the offshore installation will commence in mid- 2015, using the 2012-built heavy lift / pipelay vessel, Seven Borealis.

The Seven Borealis, pictured above, is an ULSTEIN SOC5000 design vessel measuring 182.2 x 46.2 meters, with a moulded draft of 16.1 meters. The vessel is equipped with the world’s largest revolving mast crane, capable of lifting 5,000 mT (at 40 m) over the stern. The crane has a maximum operating water depth of 6000 m with single fall.

The project completion date is projected for the second half of 2016.