BHP Billiton
Petroleum
Pyrenees
Development
Client:
BHP Billiton Petroleum
Location:
North West Shelf region,
Australia
Project Type:
SURF
The Pyrenees Development is one of the
largest SURF projects executed on the
North West Shelf due to the volume of
wells and subsea architecture.
Execution of the Pyrenees Development project was fast
tracked with the Toisa Proteus mobilising in Singapore
three weeks after the contract was awarded. Subsea 7*
immediately mobilised a suitably experienced team and
vessel to successfully execute the engineering phase and
the 144 day operational campaign.
*Project carried out by Acergy prior to merger with Subsea 7.
seabed-to-surface
Project
Pyrenees
Development
Overview
Our scope of work on this project consisted of:
Client
BHP Billiton
Petroleum
(Operator) with
partners (Apache
and Inpex)
• Mobilisation and Demobilisation of Toisa Proteus
01 November 2011
BHP Billiton Petroleum
Pyrenees Development
• Project Management and Installation Engineering
• Subsea Installation Activities
• Management of third party commissioning support
vessels.
The main components of the scope were:
Location
North West Shelf
region, approx 60km
NW of Exmouth
basin, in Australia
• Air Diving - chain cutting
• 5 off Manifolds (90Te to 150Te)
• Flexible Risers (4” to 10”)
• Flexible Flowlines (4” to 12”)
Water depth
Circa 200m
• 15 off Prod / WI Jumpers
Project Type
SURF
• 89 off Electro / Hydraulic Flying Leads
Date Awarded
June 2009
• Pre-commissioning
Date Completed
March 2010
Vessels/
Spoolbases Utilised
Toisa Proteus
Second end CVC gooseneck being
over-boarding
• 13 off Gas Lift Jumpers
• Stabilisation of Flying Leads
• Riser Pull-ins on FPSO.
Subsea 7 was able to fast track the execution of the
Pyrenees project by using our significant engineering and
operational experience and extensive local knowledge.
Our flexible approach to the dynamic offshore sequence
improved the overall efficiency of the work programme
offshore.
Second end riser hung off prior to deployment
BHP Billiton Petroleum was able to achieve first oil in May
2010.
Key Facts:
• 144 days offshore
• Fast track execution project: vessel mobilised three
weeks following contract award.
• Subsea 7 managed all BHP Billiton Petroleum Free Issue
Material Logistics, including four Heavy Lift vessels.
• The Subsea 7 team produced a stellar offshore
construction performance and positively influenced the
client’s progress in achieving targeted first oil date.
www.subsea7.com
© Subsea 7, 2011. Information correct at time of going to press.
Deployment of Hydraulic Flying Lead