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Offshore O&G

  • Visual and sonar inspections
  • 3D modeling, underwater photogrammetry
  • Cleaning of underwater structures by ROV

Search and recovery of autonomous underwater vehicles

Seabed Geosolutions – Sète (34) – 2020

Subsea Tech was contracted by Seabed Geosolutions, a company specializing in seismic exploration technologies for the offshore O&G sector, to test a solution for the recovery of small AUVs (Autonomous Underwater Vehicle) at a depth of approximately 40m. For this operation, the Tortuga ROV was equipped with a hook installed under the frame of the ROV, which allowed the AUV to be hooked.

Inspection of mooring chains off Abidjan

SERAMAR – Abidjan, Côte d’Ivoire – 2018

The Ivorian subsea company SERAMAR entrusted Subsea Tech with the visual inspection by mini-ROV of 6 anchor chains of the IMODCO buoy of SIR (Société Ivorienne de Raffinage), located off the coast of Abidjan. The mission also consisted in determining the exact GPS position of the anchors for each chain. The operation was carried out with a Guardian mini-ROV equipped with a USBL SeaTrac acoustic positioning system (Blueprint Subsea), which was used to determine the geographical coordinates of the anchors.

Some references

  • TECHNIP – Tarragona, Spain : Underwater inspections on the Casablanca platform off the Spanish coast in the Gulf of Valencia
  • SAIPEM – Angola : Hull and riser inspection on the FPSO Kizomba-B

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