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Statoil to install cables to power gas compressors on Troll A

Statoil ASA let a contract to ABB to install high-voltage subsea cables to provide power for two new gas compressors planned for the Troll A platform in the North Sea off western Norway.

With this new contract, ABB's orders in connection with the installation of the two new compressors on the Troll A platform amounts to $360 million.

Over time, the subsea reservoir pressure drops and production decreases unless the pressure is maintained by gas compression.

The new gas compressors will improve production capacity (OGJ Online, Sept. 15, 2011).

Troll A inaugurated its first power from shore in 2005, and the new system is scheduled for operation starting in 2014. The platform has a concrete gravity-based substructure in 300 m of water.

Troll gas field has a third of all gas capacity from offshore Norway and contains 48% of the remaining gas reserves offshore Norway, Statoil said.

Gas from Troll goes onshore to the Kollsnes processing plant before it is delivered to the rest of Europe.

Troll partners are operator Statoil 30.58%, Petoro AS 56%, A/S Norske Shell 8.1%, Total E&P Norge AS 3.69%, and ConocoPhillips Skandinavia AS 1.62%.


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