ROVs were used to complete subsea survey and inspections of three large jacket structures (steel frame supporting oil & gas rig deck and topsides) off the coast of California. The ROVs logged >100 dives for ~700 hrs underwater, assisting dive teams with 131 dives totalling ~337 hours. The campaign included visual, magnetic particle, and cathodic surveys of welds and structural steel pieces.
Full article at: OFFSHORE ENGINEER, 27dec19