To support IMR and ROV work offshore Brazil, subsea solution provider C-Innovation (C-I) has chosen a suite of Sonardyne’s underwater positioning and navigation systems
Remotely operated vehicles (ROVs) on board six ROV support vessels (RSVs) in Brazil will be equipped with Sonardyne inertial, gyrocompass and doppler technologies, as well as hybrid acoustic-inertial systems.
Specifically, C-I, an Edison Chouest Offshore affiliate, has ordered Sprint inertial navigation systems, a Lodestar attitude and heading reference system, Syrinx Doppler velocity logs and Sonardyne’s hybrid acoustic-inertial underwater vehicle navigation instruments, Sprint-Nav. C-I has also ordered a quantity of Sonardyne’s Compatt 6+ transponders and Wideband Sub-Mini 6+ transponder/responders for tracking structures and vehicles.
Five RSVs - Bongo, Santos Service, Joe Griffin, Normand Poseidon and Deborah Kay - will be working for Petrobras, and one vessel – Cabo Frio – will be working for Karoon Energy. The scope of work is subsea inspection, maintenance and repair operations (IMR) and ROV support.
Five of the six vessels, which start contracts in Brazil this year, are already equipped with Sonardyne’s Ranger 2 Ultra-Short BaseLine positioning system, which is used for both dynamic positioning reference and deepwater target tracking.
Sprint-Nav combines Sonardyne’s Sprint sensor, Syrinx 600 kHz DVL and a high accuracy intelligent pressure sensor packaged in a compact deep-rated housing that is simple to integrate on both remote and autonomous underwater platforms. The tight integration of inertial sensor and raw acoustic aiding data at a low level enables Sprint-Nav to meet stringent positioning specifications, making it well suited for vehicle guidance, station keeping and long endurance navigation.
Commenting on the activity in Brazil, Sonardyne sales and applications manager Andre Moura said “With the region’s majors committing to new and expanded field developments, the number, scope and value of engineering, procurement, installation and construction contracts placed here in recent months has risen significantly.”
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