Schlumberger announced an award to OneSubsea® by A/S Norske Shell of a frame agreement for an engineering, procurement, construction and installation (EPCI) contract for the supply of a subsea multiphase compression system for the Ormen Lange Field in the Norwegian Sea.

Through the EPCI contract, OneSubsea, the subsea technologies, production and processing systems division of Schlumberger, and its Subsea Integration Alliance partner Subsea7 will supply and install a subsea multiphase compression system that uses the industry’s only subsea multiphase compression technology. OneSubsea will, in the first phase of the project, do the engineering and design of the complete system. Following the final investment decision by the license group, the complete scope of the EPCI will be executed.

The compression system will be powered and controlled from the Nyhamna onshore gas processing plant, which is 120 km from the subsea location. This tieback distance is also a world record for transmitting variable speed power from an onshore facility to equipment on the seabed.

The system will be installed at 850 m of water depth and comprises two 16-MW subsea compression stations tied into existing manifolds and pipelines. This multiphase compression system is surge tolerant, does not require wellstream preprocessing, and is adaptable to the varying conditions over the life of the field.

“Our subsea multiphase compression system is a robust, compact and cost-efficient solution that will help Shell unlock the full potential of the Ormen Lange Field. Our unique wet gas compression technology can also help customers lower their carbon footprint,” said Don Sweet, president OneSubsea.

OneSubsea multiphase compression technology results in a simpler, more affordable and easier-to-install subsea compression system. By lowering backpressure on the reservoir, this technology helps customers increase recovery and extend the life of their gas developments.

About Schlumberger

Schlumberger is the world's leading provider of technology for reservoir characterization, drilling, production, and processing to the oil and gas industry. With product sales and services in more than 120 countries and employing approximately 105,000 people who represent over 140 nationalities, Schlumberger supplies the industry's most comprehensive range of products and services, from exploration through production, and integrated pore-to-pipeline solutions that optimize hydrocarbon recovery to deliver reservoir performance.

Schlumberger Limited has principal offices in Paris, Houston, London and The Hague, and reported revenues of $32.82 billion in 2018.

About OneSubsea

OneSubsea, a Schlumberger company, offers a step change in reservoir recovery for the subsea oil and gas industry through integration and optimization of the entire production system over the life of the field. OneSubsea offers best-in-class subsea solutions for its customers.

About Royal Dutch Shell plc

Royal Dutch Shell plc is incorporated in England and Wales, has its headquarters in The Hague and is listed on the London, Amsterdam, and New York stock exchanges. Shell companies have operations in more than 70 countries and territories with businesses including oil and gas exploration and production; production and marketing of liquefied natural gas and gas to liquids; manufacturing, marketing and shipping of oil products and chemicals and renewable energy projects.