Project Profile
Value: Undisclosed
Location: Mississippi Canyon Blocks 538 and 582, 100 miles (161 kilometres) south of New Orleans, Gulf of Mexico, USA
Production: 40,000 bopd
Spar processing capacity: 40,000 bopd and 110 MMcf/d (3 MMcm/d)
Water Depth: 2,200 feet (671 metres)
Start-up Year: 2003
The Medusa Field is a deepwater development located in Mississippi Canyon Blocks 538 and 582, 100 miles (161 kilometres) south of New Orleans, USA. The field is located in 2,200 feet of water (671 metres) and can produce up to 40,000 bopd. Murphy Oil Corp operates the field, holding a 60% working interest. Other partners in the field are Agip Petroleum with 25% and W&T Offshore (bought by Callon Petroleum Company in Ocotber 2013) with 15%. Moored in 2,500 feet of water (762 metres), with a processing capacity of 40,000 bopd and 110 MMcf/d (3 MMcm/d) sits Medusa Spar. Located at Mississippi Canyon 582, Medusa is the first Spar platform in the world delivered on a full scope engineer-procure-install-construct basis.
Oceaneering International holds 50% of a limited liability company named Medusa Spar LLC; Murphy Oil holds 40% of the LLC, and Callon Petroleum holds the remaining 10%. This LLC owns 75% of the Medusa Spar. Eni owns the other 25% of the Medusa Spar. Medusa serves as a production hub for deepwater field developments in the Gulf of Mexico and can accommodate a total of nine subsea wells. Built to produce for 20 years, the spar began production in 2003 with six dry trees and currently has available production capacity.
J. Ray McDermott was the EPCI provider for the project in 2001. Oceaneering provided engineering and project management, umbilical supply and offshore installation of the flow line and umbilical systems. SparTEC led the design of the Spar facility, consisting of hull, mooring system, topsides and production facilities. The hull is 586 feet (179 metres) in length, 94 feet (29 metres) in diameter and weighs more than 12,800 tons (11,612 tonnes). The topside weighs more than 6,000 tons (5,443 tonnes), and was prefabricated in subassemblies at SparTEC’s facility in Mexico. FMC Technologies, Inc. through its FMC Energy Systems business has been chosen by Mentor Subsea, a J. Ray McDermott company, to provide the wellhead trees and associated services for the Medusa Spar project in the Gulf of Mexico.
Operators:
Murphy Oil Corp: Operator with 60% interest
Agip Petroleum: 25% interest
W&T Offshore: 15% interest
Contractors:
Mentor Subsea (J. Ray McDermott): EPC contract for the Medusa Spar project
Oceaneering: Provider of engineering and project management, umbilical supply and offshore installation of the flow line and umbilical systems
Ray McDermott: EPCI contract for the project
SparTEC: Design of the Spar facility, consisting of hull, mooring system, topsides and production facilities
Subcontractors:
FMC Technologies, Inc (through its FMC Energy Systems): Provide the wellhead trees and associated services for Mentor Subsea