The US$1.9 billion Greater Enfield project offshore Australia has been given the green light by operator Woodside Energy and its partner, Mitsui E&P Australia.
First oil is scheduled for mid-2019, via a 31km subsea tie-back to the existing Ngujima-Yin floating production, storage and offloading (FPSO) facility (pictured), which sits in 400m water depth over the Vincent oil field, 60km off Exmouth, Western Australia. This is earlier than Woodside had originally indicated - Woodside had been targeting a 2H final investment decision and 2020 first oil.
The new project will develop the Laverda Canyon, Norton over Laverda (WA-59-L) and Cimatti (WA-28-L) oil accumulations. Enfield, Vincent, Norton, Laverda and Cimatti are all names of motorcycle brands.
The Greater Enfield project requires the development of six subsea production wells and six water injection wells. Production will be supported by subsea multiphase booster pumps in the Laverda area and gas lift in the Cimatti area.
The project is targeting development of gross 2P reserves of 69 MMboe from the Laverda Canyon, Norton over Laverda and Cimatti oil accumulations. Woodside reserves will increase by 41 MMboe in conjunction with the approval of the project for development.
Woodside CEO Peter Coleman said that monetizing Greater Enfield was made possible by breakthroughs in the development concept, technology and contracting.
“We have achieved investment spend at the low end of our guidance range by leveraging the latest technologies and using existing FPSO infrastructure,” he said.
“This allows us to accelerate the development of previously stranded resources. Greater Enfield is a demonstration of our phased and sustainable approach to growth.”
The Ngujima-Yin disconnectable turret-moored FPSO is a 332m-long doubled hulled tanker, built in 2000, and converted to an FPSO to produce the Vincent oilfield. Vincent was discovered in 1998 and has been producing since 2008. It sits near to the Enfield oilfield, discovered in 1999, and producing since 2006 via another FPSO, the Nganhurra.
Woodside bought the vessel from Maersk FPSOs in December 2011. The Vincent development consists of 13 subsea wells (eight bilaterals and five trilaterals) tied back to the FPSO, which has 120,000 b/d capacity.
Woodside as operator has 60% interest in this development, while partner Mitsui E&P holds the remaining 40% stake.
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