Nexans said July 3 it will provide a total of 27 km (16 miles) of complex umbilicals with power, fiber-optic and hydraulic elements for the next development phase of the Troll field on the Norwegian continental shelf.
The initial development was carried out over two phases, and now Equinor (NYSE: EQNR) is starting the Phase 3 development to recover the large amount of gas resources in the western part of the field. Nexans will play a vital role in the Troll Phase 3 project by supplying Equinor with the complex umbilicals required to power and control the subsea systems.
Phase 3 of the Troll project covers the development of the Troll West structure, which lies in water depths of approximately 330 m (1,082 ft) and is located 25 km (15 miles) north-west of the Troll A platform. The subsea production systems will comprise two subsea templates or manifolds, as well as nine trees. Each manifold is expected to have four well slots. A total of eight production wells will be drilled and tied-back to the Troll A platform in order to recover the gas reserves. First gas is expected from the project in the second-quarter of 2021.
For the Troll Phase 3 development Nexans Norway will design, manufacture and supply static umbilicals that include high voltage power elements, high-pressure hydraulic lines, low-pressure hydraulic lines, a methanol and glycol service line for chemical injection, a spare line and fiber-optic communications—all within a single cross-section. A 20 km (12 mile) umbilical will link the Troll A platform to Template W1, while a 7 km (4 mile) umbilical will then link Template W1 to Template W2. The contract also includes the supply of connections, terminations and other umbilical accessories.
Nexans is scheduled to deliver the Troll Phase 3 umbilicals in the first-quarter of 2020.
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