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McDermott Scores Subsea Work at ExxonMobil's Julia Field

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McDermott Scores Subsea Work at ExxonMobil's Julia Field

McDermott International, Inc. announced Monday that one of its subsidiaries has been awarded an engineering, procurement and construction (EPC) contract by Exxon Mobil Corporation for its Julia development. The value of the contract is included in McDermott's second quarter 2013 backlog.

The Julia field is located approximately 265 miles southwest of New Orleans in the Gulf of Mexico Walker Ridge area in water depths of approximately 7,000 feet. The Julia Phase I project is a subsea tie-back to a semisubmersible floating production unit and the scope includes six subsea wells, one six-slot manifold, two umbilicals, six jumpers, two flowlines with two steel catenary risers, two subsea pump modules and topsides support equipment. Production will flow through two 10-inch production flowlines with subsea single-phase boost pumps. Exxon Mobil Corporation, the operator, and Statoil each hold a 50 percent interest in the Julia field development.

“McDermott offered a very competitive solution for the Julia project with the right people, assets and technology, based on our experience with a similar deepwater Gulf of Mexico subsea tie-back project that we were awarded in 2011,” said Stephen M. Johnson, chairman, president and CEO of McDermott. “The Julia subsea infrastructure requires a high level of engineering design and construction work, a key component of which is high-specification welding to help ensure long-term integrity and reliability of the subsea facilities. The installation solution we offer provides a high degree of reliability and precision using key vessels in our fleet for deepwater lowering and flexible lay, and further demonstrates our commitment to the subsea market.”

McDermott will undertake engineering, procurement and construction of the jumpers, four suction piles associated with the manifold, subsea pump, pump transformer and Subsea Distribution Unit /Umbilical Termination Assembly, as well as the transportation and installation of the manifold, suction piles, flying leads, subsea pump system, the power and control umbilicals and SDU/UTAs. McDermott will also carry out testing of the tie-back system and mechanical completion before hand over to the customer.

McDermott expects to successfully execute this high‐profile project employing its in‐house expertise and capabilities for subsea engineering, high‐spec fabrication and subsea installation. Work will commence with immediate effect in our Houston office.

McDermott deepwater installation vessel Derrick Barge 50 is expected to undertake the installation of suction piles and subsea equipment, including the manifold, pump station and transformer. The vessel’s new deepwater lowering system has the capability to lower loads of up to 480 tons to depths of up to 11,500 feet.

In addition, North Ocean 102 (NO102) is scheduled to transport and install umbilicals, flying leads and jumpers. NO102 is a fast-transit vessel with horizontal carousel. Recent improvements include installation of a high-capacity flexible-lay system to enable ultra deepwater installation work – comprising a 330-ton top-tension flex-lay tower, with 275-ton active heave compensation crane and 330-ton hang-off clamp capable of lowering loads to a depth of 10,000 feet.


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