Arcticnor has supported Wood and Dolphin Drilling with corrosion management on the semisubmersibles Blackford Dolphin and Borgland Dolphin in conjunction with Special Renewal Surveys (SPS). We have assisted on the development of a bespoke software, including corrosion inspection planning, assessment, remedial actions, data processing and storage of Ultrasonic Thickness Measurements (UTM) in pontoon ballast tanks.