Project Profile
Location: 115km off Western Australia
Year discovered: 1972
Start-up year: 2008
Water Depth: 89m / 295 ft
The Angel Gas and Condensate Project lies 115km off Western Australia, inshore from the North Rankin and Goodwyn fields. Together they make up the three original North West Shelf fields discovered by Woodside-Burmah in 1972.
The field\'s platform is about 49km east of the North Rankin A platform and about 20km north-east of the Cossack Pioneer facilities.
Woodside Energy is the overall operator of the North West Shelf venture, which has equal one-sixth partners – BHP Billiton Petroleum, BP Developments Australia, Chevron Australia, Japan Australia LNG, Shell Developments and Woodside itself. CNOOC NWS is also a member of the venture but does not have an interest in the infrastructure.
The front-end engineering contract for the development of the platform was awarded to the Eos joint venture between WorleyParsons Services and Kellogg Brown & Root (KBR).
JP Kenny was awarded the contract for the engineering of the flowlines, export pipeline, power cable, tie-in to the existing gas trunkline, and tie-ins to the three subsea wells.
Transfield Worley carried out the engineering and the construction work associated with the modifications to the North Rankin A platform to enable the supply of power to and remote control of the Angel platform.
The Aker Kvaerner-Clough Ltd joint venture was awarded the contract for the installation of the topsides for the platform, performing all installation engineering and construction activities related to transportation and installation of the Angel topside. The 7,300-ton topside was built in Batam, Indonesia, by Malaysian Marine Heavy Engineering. It left Malaysia in March 2008 on the Dockwise heavy transport vessel Black Marlin, which was contracted by the joint venture for the transportation and float-over installation of the Angel topside.
The topside was installed over a four-legged steel jacket, weighing 8,000 tons, which itself was transported to the Angel field by J Ray McDermott\'s launch barge Intermac 650 and installed by J Ray\'s derrick barge DB30.
Operators:
Woodside Petroleum: Operator with 16.60% interest
BHP Billiton: 16.60% interest
BP: 16.60% interest
Chevron Corporation: 16.60% interest
Mitsubishi Corporation Exploration: 16.60% interest
Shell E&P: 16.60% interest
Contractors:
Monadelphous: Maintenance, shutdown work.
Eos joint venture for FEED contract:
WorleyParsons Services
Kellogg Brown & Root (KBR)
JP Kenny: Engineering of the flowlines
Transfield Worley: Engineering and construction work
Joint Venture for Installation of topsides:
Aker Kvaerner
Clough Ltd
Subcontractors:
Marine Heavy Engineering: Built Topside for Aker Kvaerner-Clough Ltd joint venture
J Ray McDermott: Transported and installed steel jacket for topside