SeaStar TLP Project Summaries

Matterhorn (TOTAL USA, INC.)

Matterhorn was Atlantia's first dry-tree TLP, and it was the first deepwater structure in the Gulf of Mexico to be built on a full turnkey EPCI contract.
Location Mississippi Canyon, Block 243
Water depth 2820 feet
Project award September 2001
Platform installation August 2003
First oil November 2003
Payload 16,850 kips
Column diameter 84 feet
Column height 125 feet
Draft 104 feet
Pontoon radius 179 feet
Pontoon height 42 feet
Deck/facilities weight 13,350 kips
Deck dimensions 140 x 140 feet
Quarters capacity 22
Helideck Sikorsky S-76

Typhoon (ChevronTexaco/BHP)

Typhoon established production 78 days ahead of schedule and more than 5 months ahead of the industry average for similar projects. Total project cost was approximately $30 million under budget.
Location Green Canyon, Block 237
Water depth 2100 feet
Project sanction January 2000
Platform installation May 2001
First oil July 2001
Payload 8016 kips
Hull weight 6210 kips
Column diameter 58 feet
Column height 109 feet
Draft 115 feet
Pontoon radius 25 feet
Pontoon height 68 feet
Deck/facilities weight 6918 kips
Deck dimensions 110 x 110 feet
Quarters capacity 22
Helideck Sikorsky S-76

Allegheny (AGIP)

Location Green Canyon, Block 237
Water depth 3300 feet
Project sanction January 1998
Platform installation June 1999
First oil August 1999
Payload 7500 kips
Hull weight 6210 kips
Column diameter 58 feet
Column height 112 feet
Draft 91 feet
Pontoon radius 115 feet
Pontoon height 25 feet
Deck/facilities weight 4000 kips
Deck dimensions 110 x 110 feet
Quarters capacity 18
Helideck Bell 412

Morpeth (AGIP)

Location Ewing Bank, Block 921
Water depth 1700 feet
Project sanction January 1997
Platform installation August 1998
First oil October 1998
Payload 7000 kips
Column diameter 58 feet
Column height 112 feet
Draft 91 feet
Pontoon radius 115 feet
Pontoon height 25 feet
Deck/facilities weight 4100 kips
Deck dimensions 110 x 110 feet
Quarters capacity 18
Helideck Bell 412