sentences:  A state-of-the-art FPSO, (the Glen Lyon), brand-new seabed infrastructure and world-leading subsea technology will play a major part in the redevelopment of these fields, as will the use of a new enhanced oil recovery scheme.Due to come onstream in 2016, the redevelopment will extend production from the hub beyond 2035.The Schiehallion and Loyal fields have produced nearly 400 million barrels of oil since production started in 1998 and an estimated 450 million barrels of resource is still available, more than was originally thought.