SEMTEC operates a permanent team of class 2A surface-supplied divers and certified hyperbaric operators delivering all industrial underwater works: wet and dry hyperbaric welding, oxy-arc cutting, steel structural recovery, afloat hull repair, work on propellers, rudders, sea chests and intake gratings.
Our hyperbaric resources include containerised decompression chambers, IMCA D023 nitrox panels for 3 divers, long umbilicals, wet bells and an onboard HP/LP workshop. Standard operating depth: 0 to 50 m on air, deeper using gas mixes.
Wet hyperbaric welding
Underwater arc welding using coated and flux-cored electrodes, diver-performed NDT.
Afloat repair
Hull, propeller, grating, sea chest — no drydock, time and cost savings for the owner.
Underwater oxy-cutting
Thermal cutting of submerged steel, decommissioning of wrecks and platforms.
Hyperbaric chamber
Controlled decompression, treatment of diving accidents, French Decree 2011-45 compliance.