Neptune, Gulf of Mexico, USA
Key Data:
Location
Gulf of Mexico
Blocks
Atwater blocks 573, 574, 575, 617, and 618,
Blocks
120 miles from Louisiana
Landfall
120 miles from Louisiana
Water Depths
4,200ft to 6,500ft
Recoverable Reserves
Between 100 and 150 million barrels of oil equivalent
Discovered
1995
Geology
Western Atwater Foldbelt.
Neptune-2
1997
Neptune-3
2002, 120ft of net pay
Neptune-5
2003, 500ft of net pay
Neptune-7
2004, 114ft of net pay
Rig
Development Driller 1
Development
Tension Leg Platform (TLP)
Quarters
26 people permanent, 24 temporary
Helideck
S-92 helicopter
Hull
Mono-column steel hull
Column Height
128 ft (39m)
Diameter
79ft (23m)
Pontoons
3
Tendons
6
Tendon Segments
289ft (88m)
Piles
6 piles
Diameter
96ins
Length
414ft
Gross Costs
$850m
Oil and Gas Export
Caesar and Cleopatra trunk lines
Oil Export
20in diameter by 23 miles
Gas Line
12.7in diameter by 23 miles
Key Players:
Operator
BHP Billiton (35%)
Marathon Oil (30%)
Woodside Energy (20%)
Maxus Exploration (15%)
Marathon Oil (30%)
Woodside Energy (20%)
Maxus Exploration (15%)
Design
Atlantia Seastar
EPCi
SBM Atlantia
Fabricated
Gulf Island fabricators
Assembled
Heerema Marine Contractors
Tendon Supplier
Europipe.
Connections
Vetco
