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Tritech’s range of Gemini multibeam imaging sonars are rapidly becoming the sonar operators adopt to navigate, visualise and monitor in poor visibility and turbid warters.

C-Innovation do Brasil recently used the deep-rated Gemini 720i to inspect the hull of an FPSO turret; to inspect a repair and to monitor the surrounding environment.
The inspection was to locate a repair, approximately 40cm wide, on the hull of the FPSO. During the operation, the vehicle was slightly elevated and tilted towards the riser and held at a depth of 15 m away from the hull of the FPSO, due to the vast number of risers and mooring lines; therefore the Gemini sonar was operating at long-range.
C-Innovation operated a Schilling ROV, as fitted with the Gemini 720id and Tritech’s local service partner, MACSEA Ltda provided local customer technical support for the demonstration.

Renan Ocampo, Support Technician, MACSEA commented:
“We developed the Gemini brackets based on Schilling ROV frame, making it adjustable and easy to install, providing a good inspection angle.”

Alex Maia, General Manager, C-Innovation do Brasil commented:
“Our ROV fleet is adaptable to host many plug-and-play technologies, including Tritech’s Gemini. We have made several riser inspections where the Gemini helped quite a lot, especially around the TDP [touch-down point] where there was low visibility, here we could clearly see the trench below the suspension, thanks to the imagery of the Tritech Gemini sonar.”

Tomás Peixoto, ROV Operations Coordinator, C-Innovation do Brasil commented:
“We were amazed by the image quality and the operational performance of the Gemini sonar which enhanced our ability to navigate in low visibility, as well as provide a clear window for target identification during the survey. Overall we completed the job in a safe and timely manner.”

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