Brazilian Offshore Oil Field Takes Nexans’ DEH System to Record Depths

Source: www.gulfoilandgas.com 4/30/2015, Location: South America

A Brazilian oil company has selected Nexans for a FEED (Front End Engineering & Design) contract to deliver a complete Direct Electrical Heating (DEH) system for the subsea pipelines serving an offshore field development. This latest project continues Nexans’ long track record in the engineering and delivery of complex subsea umbilicals and accessories for major projects as Brazil makes the transformation from energy importer to energy exporter.

The study contract applies to oil fields located off Brazil’s coast in water depths up to 2,300 metres.

As part of the contract, Nexans will deliver a complete DEH system, including Topside Power Supply, Riser Cable, Piggyback Cable and all associated accessories for the connection and installation of the pipelines that will connect the subsea facilities with the FPSO (Floating Production Storage and Offloading) vessel. The development will be the world’s deepest DEH system, going around 1,000 metres deeper than Nexans’ current Lianzi project offshore from the Republics of Congo and Angola.

Direct electrical heating (DEH) is a technology for flow assurance, developed to safeguard the wellstream through the pipeline to the platform. The method is based on controlling the temperature of the pipeline by passing electric current (AC) through the steel wall of the pipeline, thus preventing hydrate and wax formation. The DEH System limits the need for chemical injection, pressure evacuation or other flow assurance methods that might have environmental or operational challenges. DEH allows the pipeline to be operated in a cost efficient and environmentally safe manner.

Nexans has pioneered the development of DEH technology in partnership with Norwegian operators and research organisations. Over the last 15 years Nexans has developed significant subsea system technological competence and analysis capability in-house.

For more information about related Opportunities and Key Players visit Brazil Oil and Gas Projects


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Related Categories: Consultancy  Engineering  FEED  General  Maintenance and Repair  Process Technology Licensing  Production Engineering  Project & Resource Management 

Related Articles: Consultancy  Engineering  FEED  General  Maintenance and Repair  Process Technology Licensing  Production Engineering  Project & Resource Management 


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