HOUSTON, April 4, 2016—OneSubsea, a Schlumberger company, today announced the successful commission and startup of subsea boosting systems installed in ultradeep waters, located in the Gulf of Mexico.

"We strive to deliver the solutions that help customers reduce costs while increasing recovery from the reservoir, and in this case, our subsea boosting technology is enabling the customer to optimize production from one of the world's deepest subsea reservoirs," said Mike Garding, president, OneSubsea, Schlumberger.

Installed in depths of approximately 7,000 ft [2,100 m], the subsea boosting systems consist of three retrievable 3.0 MW single-phase pump modules, which are landed in their pump stations, along with the subsea controls and power distribution system. Located topside is the associated pump control and instrumentation equipment with the variable speed drive and step-up transformer delivering power to the subsea equipment.

Having developed the first subsea boosting systems by a predecessor company more than 25 years ago, OneSubsea is the market leader in this field-proven technology designed to increase production rates and ultimate recovery from subsea fields. The customer has stated that by reducing the back-pressure on the reservoir, the boosting pumps have the potential to improve the recovery factor by 10% to 30%. This translates to between 50 and 150 million barrels of additional oil recovery resulting from this leading-edge subsea boosting technology.

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 Schlumberger

Schlumberger is the world's leading supplier of technology, integrated project management and information solutions to customers working in the oil and gas industry worldwide. Employing approximately 95,000 people representing over 140 nationalities and working in approximately 85 countries, Schlumberger provides the industry's widest range of products and services from exploration through production.

Schlumberger Limited has principal offices in Paris, Houston, London and The Hague, and reported revenues of $35.47 billion in 2015.