Gulf of Mexico Blocks GC 518, 562 & 608

Landmark: World’s Deepest Tension-Leg Platform

Project Overview

• Contract Award: 2002 (Surface Trees)
• 2003 (K2)
• 2004 (GC 518)
• Sales: Houston, Texas
• Fabrication: Houston, Texas
• Service Base: Houston, Texas
• Host Type: Mini-TLP
• Contract Type: EPC

Project Characteristics

• No. Trees: 6 (Surface, Non-FMC)
• 3 (K2, Non-FMC)
• 2 (GC 518)
• Water Depth: 1,310 m (4,300 ft)
• Tree Type: Surface, Subsea
• Tree Pressure: 10,000 psi
• Tree Bore Size: 4" (Surface)
• 4"x2" (Subsea)
• Hydrocarbon: Oil/Gas

Project Ownership

• Anadarko 100%

Scope of Work

Surface/Subsea

• Two (2) horizontal 4"x2" 10,000 psi subsea trees
• Six (6) complete production-riser systems
• Global riser design and analysis
• UWD-15 subsea wellhead systems
• Hydraulic external tieback connectors
• Tapered stress joints
• High-fatigue-resistant outer riser joints
• Inner riser joints
• Keel joints
• Tension joints
• Hydro pneumatic riser tensioner
• System integration testing, offshore installation support and technical assistance

Floating Production

• Engineering procurement and construction of the hull, mooring system and production-riser system for the Tension Leg Platform (supplied by MODEC)

Comments

Marco Polo is Anadarko’s first deepwater development project. It is located on Green Canyon Block 608 about 240 km (150 miles) offshore Louisiana in the Gulf of Mexico. It uses a floating production platform capable of accommodating production from multiple fields. The platform is stationed in 1,310 m (4,300 ft) of water and functions as a hub.

Production capacity is 120,000 bopd and 300 mmcf/d of gas.Under the agreement, Anadarko has a firm capacity of 50,000 bopd and 150 mmcf/d of gas. The remainder of the platform capacity will be available to Anadarko for additional production and/or to third parties that have fields developed in the area.

Oil and gas processed on the platform is transported through new gathering pipelines to downstream markets. The oil is transported through a new 55 km (34 miles), 14" pipeline and El Paso’s Allegheny oil pipeline to Ship Shoal 332 platform where onshore markets can be accessed via the Poseidon oil pipeline system.