McDermott International, Inc. MDR (“McDermott”) is pleased to announce
the successful completion of the Jack and St. Malo project for Chevron U.S.A.
Inc. The project involved the installation of jumpers, flying leads, subsea
pump stations, umbilicals and subsea landing of some of the industry's largest
and complex umbilical end terminations to a host floating production platform
in 7,200 feet of water 279 miles offshore Louisiana. The project is part of
the first stage of development of the Jack South, St. Malo South and St. Malo
North Drill Centers.
McDermott subsea construction vessel NO102 installed umbilicals totaling 65
miles along with other r ...
McDermott subsea construction vessel NO102 installed umbilicals totaling 65
miles along with other related subsea structures. (Photo: Business Wire)
McDermott executed in-house fabrication of 21 high specification rigid
flowline, manifold and pump jumpers and installed the structures using the
Derrick Barge 50 (“DB50”) with its specialized deepwater lowering system. In
addition, more than 80 flying leads, five additional rigid production well
jumpers and other subsea control and production boost components were
installed by the DB50 – including three pump stations each weighing 209 tons
to a depth of 6,988 feet. The DB50 was assisted by a fleet of up to 12 support
vessels delivering material from various Gulf Coast fabrication and staging
facilities to the offshore installation site.
Additionally, three control and two power umbilicals totaling 65 miles were
transported and installed by the subsea construction vessel North Ocean 102
(“NO102”) along with other related subsea structures.
“Our ability to fabricate the jumpers in house and utilize the combined
strengths of the DB50's deepwater lowering system and the high payload and top
tension capacity of the NO102's 330-ton vertical lay system allowed McDermott
to deliver an integrated subsea solution for our client on this complex
deepwater project,” said Tony Duncan, Executive Vice President Subsea. “As the
industry moves into deeper water, McDermott continues to tailor its subsea
engineering expertise, fabrication facilities, and global fleet of specialized
vessels to meet the evolving technical needs of our clients.”
Located in the Gulf of Mexico Walker Ridge Area, the Jack and St. Malo fields
are jointly being developed with a host floating production unit.
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