Subsea umbilicals, risers and flowlines

During the last few years, offshore oil extraction activity has been constantly increasing. New platforms are being continuously installed in different parts of the world and operate in deeper and deeper waters. The safe and efficient interconnection from the topside platforms and vessels to the wellheads and pumps on the seafloor is necessary to guarantee reliable oil extraction operations.

Subsea Umbilicals, Risers and Flowlines (SURF) form this vital link among the various centres of operation. They must be able to withstand high mechanical and chemical stresses, high operating temperatures and pressures in order to ensure the continuous and reliable supply of services in the harsh environments below the sea.

Energy Projects is able to:

  • Offer a comprehensive range of products and services that meet oil and gas companies’ offshore deep and ultra-deepwater needs
  • Supply risers and flowlines that bring hydrocarbons from the wellhead to the surface and then route them to processing plants


  • We understand the complexities of applying coatings in an offshore environment. We are able to provide within ArcelorMittal or with top coating companies a complete range of coating services for the most demanding environments such as anti-corrosion and thermal insulation solutions
  • In addition, we can offer with ArcelorMittal R&D center in Ghent Belgium some technical support in order to provide welding solutions


B-127 Cluster (India)

5,500MT seamless rise/flowlines (Gr X52NO, X60QO, X60QS) 


Coelacanth (USA)

5,500MT seamless linepipes (Gr X42NO & X52NO) 

Walter O&G