Sonardyne’s acoustic and inertial navigation technology has been selected by DOF Subsea to support its deepwater operations with three ROV vessels off the coast of Brazil, the company announced on 9 October.
The three vessels will be equipped with Sonardyne’s SPRINT-Nav all-in-one subsea navigation instrument for underwater vehicles. An additional ROV will also be fitted with a Sonardyne Syrinx Doppler Velocity Log, in place of its existing system.
The vessels are on long-term contract, carrying out ROV operations as part of construction, inspection, maintenance and repair work in Brazil’s deepwater pre-salt oil fields, at depths down to 3,000 metres.
SPRINT-Nav combines Sonardyne’s SPRINT sensor, Syrinx 600 kHz DVL and a high accuracy intelligent pressure sensor in a single housing, for subsea inertial navigation and positioning.