WorldOil

First subsea dual-ESP development tied back to an FPSO

The Mutineer and Exeter fields in the Canarvon basin offshore Western Australia were developed using subsea production wells with dual Electrical Submersible Pumps (ESP) in four wells and a mudline Multi-Phase Pump (MPP) in each field. Dual ESPs were selected to ensure maximum well availability and flexibility. Using MPPs, Santos could reduce ESP horsepower and have a phased production approach. Production from each well is commingled at the MPP suction manifold in each well center and produced through a flexible riser to an FPSO stationed 7 km from Exeter and 3 km from Mutineer in 160 m of water. The Mutineer-Exeter development is 150 km offshore, north of Dampier in Western Australia within the WA 191-P exploration permit, operated by Santos Ltd. with partners Kufpec Pty Ltd., Nippon Oil Exploration Pty Ltd., and Woodside Energy Ltd., Fig. 1. The project was Santos’ first offshore field development.