Mike Garding, president, OneSubsea, Schlumberger, said: “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.”
Installed in about 7,000 ft (2,100 m) of water, 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 topsides are the associated pump control and instrumentation equipment with the variable speed drive and step-up transformer delivering power to the subsea equipment.
According to OneSubsea, 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 MMbbl of additional oil recovery.
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