Matterhorn SeaStar® TLP

The Matterhorn SeaStar® TLP  was the first dry tree SeaStar hull and the largest one built to date, measuring more than twice the size of the previous three SeaStar projects.  The hull was fabricated in only 12 months at the Keppel FELS yard in Singapore.  SBM Atlantia’s scope of work was EPCI.

Field Facts
Location	Mississippi Canyon, Block 243
Water Depth:	2,820 ft
Oil throughput:	33,000 bpod
Gas throughput:	55 MMcfd
Water Injection:	20,000 bwpd
# of production wells:	5 spare (sub-sea), 7 + 2 spare (surface)
Production Risers:	10 ¾-in, 9 5/8-in, 9 7/8-in
Export Risers:	18-in SCR (oil), 10-in SCR (gas)
SeaStar® TLP Specifications
Payload (deck/facilities/risers):	8,425 tons
Tendons:	6 32-in
Main column dimensions:	584 ft (dia) x 125 ft (ht)
Pontoon dimensions:	179 ft (r) x 42 ft (ht)
Draft:	104 ft
Deck Dimensions:	140 x 140 ft (3 levels)
Schedule Milestones
Project Sanction:	September 2001
Platform Installation:	July 2003
First Oil:	November 2003