NorClean Technology
Anchor bolts installed in subsea rock during the Nexans operation in Fensfjorden

Project · Nexans

Subsea cable infrastructure

Horizontal drilling for high-voltage cable anchor bolts, followed by concrete mattress installation at the landfall.

Client
Nexans
Location
Fensfjorden, Norway
Year
2019 / 2023

Challenge

Securing high-voltage subsea cable infrastructure along an underwater rock face, where drilling had to be carried out horizontally into rock rather than vertically into the seabed.

NorClean solution

NorClean positioned its ROV drilling system against the rock face and drilled horizontally for anchor bolts. CONCRETE MATTRESS INSTALLATION FOR POWER CABLE: NorClean carried out the installation of concrete mattresses at the cable landfall to support and protect the power cable.

Result

Anchor-bolt drilling and concrete mattress installation at the cable landfall were completed during documented Nexans operations in 2019 and 2023.

Contact

LET'STALKSUBSEA.

Tell us about your project, location and operational requirements.

Direct

907 30 972post@nclean.no

NorClean Technology AS
Oldernesveien 17, 5163 Laksevåg
Bergen, Norway