||Intervention Sous-Marine ISM 90, Toulon (France), 3-5 Dec 1990
||Actes de colloques. Ifremer. Brest [ACTES COLLOQ. IFREMER.]. 1991
||Steel structures, Detection, Cracks, Surveillance and enforcement, Pipelines, Offshore structures, Underwater inspection, Offshore operations, Marine technology, Offshore, Unmanned vehicles
||The purpose of the paper is to present the state of the Art in use of ROV for assistance in offshore operations. This is done through a review of operations and gained experience during East Frigg Field diverless installation in 1988 and 10 years or under water Inspection, Maintenance and Repair (IMR) on all Fields operated by Elf Aquitaine Norge A/S (EAN). Basic requirements to the types of ROVs are given and the cost-efficiency of the operations are discussed. The potential for further development of the ROVs to replace divers for a large part of annual IMR tasks below water is addressed.