wiredInUSA November 2017

New center open for business

Offshore cable contract

Image: Jan De Nul Group

Preparations for subsea cable laying work at ADMA-OPCO’s NASR full field development Package 2 project, off the coast of Abu Dhabi, are underway, led by a team of engineers at Jan De Nul Group’s Abu Dhabi office. The group’s offshore work scope includes the installation of three 132kV subsea power cables and ten 11kV subsea power cables, totaling over 200km of cable. Jan De Nul is mobilizing its cable laying vessel Isaac Newton to perform the loading, transport and cable laying. Due to its large carrying capacity, the Isaac Newton will install all 200km of cable in just two trips. The first cable sections were loaded at Nexans’ facilities in Norway in early October 2017. The cable protection works, which comprise pre- and post-lay mattress installation, post- lay trenching and subsea gravel installation, will be performed by Jan De Nul Group’s latest multi-purpose vessel, Daniel Bernoulli . The cable routes will cross existing assets at more than 50 locations, involving installation of approximately 700 concrete mattresses. Around 60km of the cable route will require burial, of which a substantial portion goes into calcarenite (a type of limestone) rock. The offshore works will be completed during the second quarter of 2018.

Image: Rosendahl Nextrom

Rosendahl Nextrom’s newest venture, and its biggest research and development investment to date, has opened its doors for test runs and demonstrations. The preform center, in Vantaa, Finland, will research OVD clad deposition and sintering systems. The availability of preforms is essential for smooth and effective production of optical fiber, and the increasing demand for optical fiber means an increase in preform production performance and new technology investments. The new research center consists of an OFC 05 horizontal OVD clad deposition system and an OFC 08 clad sintering system. OVD cladding process trials can be run using full- sized preforms. Nextrom offers commercial solutions for OVD cladding of 150mm in diameter and various sizes in length. The OVD deposition system is an economical way to overclad core preforms. As a standard, the Nextrom OVD systems use D4 (OMCTS) as a raw material and CH4 as a burner gas. D4 is a halide-free material that reduces the investment level by having only a particle filter on the exhaust, without an expensive gas washer.

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wiredInUSA - November 2017