Located 34 km east of the North Rankin A platform, the Cossack Pioneer FPSO facility is moored to a riser turret between the Wanaea and Cossack oil fields.

Connected by flexible flowlines to subsea wells on the Cossack, Wanaea, Lambert and Hermes fields, which have produced 395 million barrels of oil since production began in 1995, the Cossack Pioneer has a daily production capacity of up to 140,000 barrels of oil, 3,800 tonnes of gas and a storage capacity of 1.15 million barrels of oil.

Crude oil is offloaded from the vessel via a flexible line to bulk tankers moored astern, while a pipeline exports LPG-rich gas from the Cossack and Wanaea fields to the North Rankin A platform, before being transferred to the Karratha Gas Plant for processing. 

Woodside acquired Shell Development Australia’s 16.67 per cent interest in the North West Shelf oil interests in May 2008, and in December 2008 the CWLH joint venture approved funding for the replacement of the Cossack Pioneer FPSO in 2010, and the replacement of associated subsea infrastructure. The project will support ongoing safe and reliable production from the Cossack, Wanaea, Lambert and Hermes fields beyond 2020.

 

Location:	112km north-west of Karratha, Western Australia 34km east of North Rankin platform
Facility:	Floating production, storage and offloading facility
Storage capacity:	1.15 million barrels
No of wells:	10 production wells
Production capacity:	150,000 barrels of oil per day
Commissioned:	1995
Refurbished:	1999
Water depth:	80 metres
Producing fields:	Wanaea, Cossack, Lambert, Hermes
Permits:	WA-11-L, WA-9-L, WA-16-L
Discovered:	1989 Wanaea, 1990 Cossack, 1996 Hermes, 1996 Lambert