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Nexans’ deepest power umbilicals installed in the Gulf of Mexico
Dec 11, 2014 + + + At a water depth of 2,100
meters, the Chevron-operated Jack and St. Malo oil and gas fields are the
deepest installation to date for Nexans’ innovative power umbilicals that
integrate HV power supply and umbilical functions within a single cable
cross-section. The Jack and St. Malo fields are located within 25 miles
(40 km) of each other approximately 280 miles (450 km) south of New
Orleans, Louisiana. The project comprises of three subsea centers tied
back to a hub production facility with a capacity of 170,000 barrels of
oil and 42.5 million cubic feet of natural gas per day.
Nexans’
deepest power umbilicals installed in the Gulf of MexicoNexans’
specialized cable and umbilical manufacturing facilities in Halden,
Norway, have designed and manufactured the 42 km power umbilical for the
two fields in two separate lengths.
The power umbilical is an
innovative design pioneered by Nexans that integrates the functions of
power cables and umbilicals in a single cable, enabling a high-voltage
(HV) supply to be provided for deepwater projects. A power umbilical
includes a number of steel tubes as well as fiber optic elements and
signal cables for control and monitoring purposes. By eliminating the need
to transport and install a separate power cable, and a control umbilical,
the power umbilical significantly reduces transportation and installation
costs.
Nexans’ deepest power umbilicals installed in the Gulf of
Mexico The design of this complex power umbilical, capable of operating at
a water depth of 2,400 meters, and with a design life of 30 years, has
required an experienced multi-discipline engineering team to meet the many
technical challenges. The two power umbilicals were successfully
manufactured and delivered on a transportation barge to a storage location
in Mobile, Alabama. The two power umbilicals were successfully installed
in July, 2014.
”It has been a pleasure to work with such
professional engineers, both from Nexans and Chevron, whose dedication and
teamwork has been the key to a successful project”, says Project Manager
David Rasmuss of Nexans
Source: Angéline Afanoukoe, Michel Gédéon,
Nexans
www.nexans.com
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