Subsea 7 Awarded Ormen Lange Contract

FEED for Offshore Field

Offshore engineering firm Subsea 7 has secured a contract for the development of subsea systems at the Ormen Lange Field in Norway.

The front-end engineering design contract was awarded by oil services firm Schlumberger and will involve transport to deepwater natural gas field, 120 kilometers from the Norwegian coast.
“This compression tieback project builds on the Subsea Integration Alliance integrated boosting tieback packages supplied to Taqa Otter in the North Sea and Murphy Dalmatian in the Gulf of Mexico,” said Monica Th. Bjørkmann, Subsea 7’s vice president Norway.

World Record Transmission
The field is operated by oil explorer Norske Shell and work will be carried out on behalf of Schlumberger subsidiary, OneSubsea, which is developing the project.

“Once the subsea multiphase compression system is installed, the tieback distance will represent a world record for transmitting variable speed power from shore to seabed,” a spokesperson for Subsea 7 said.
OneSubsea is responsible for subsea technologies, production and processing systems within Schlumberger and the FEED contract marks the first stage of its engineering, procurement, construction and installation (EPCI) work at Ormen Lange.

Subsea Integration Alliance
A subsea multiphase compression system will be delivered to the site by OneSubsea and installed at a water depth of 850 meters. Consisting two 16-megawatt subsea compression stations tied into existing manifolds and pipelines, the breakbulk units will be controlled remotely from the Nyhamna gas processing plant, 120 kilometers away onshore.
“This award is an important demonstration of the value Subsea Integration Alliance brings by combining the technologies and capabilities of OneSubsea and Subsea 7 into a seamless integrated offering, resulting in the delivery of optimised solutions, with reduced execution and interface risk,” Bjørkmann added.
Registered in Luxembourg, Subsea 7 provides engineering solutions and breakbulk transport for the offshore energy industry globally.