Abstract
Abstract Mini Remotely Operated Vehicle (mini-ROV) technology has been utilized to perform underwater inspection with optimized Risk-based Underwater Inspection (RBUI) scope for offshore platforms which conventionally utilize divers and ROV supported by Dynamic Positioning II Diving Support Vessel (DPII DSV). This offshore technology was introduced by launching mini-ROV from platform deck to perform General Visual Inspection (GVI), Cathodic Potential (CP) Survey, Flooded Member Detection (FMD) & Ultrasonic Thickness (UT) measurement with customized mini-ROV integration with other tooling. The small size ROV is light and easy to handle by technician onboard platform deck. It is also capable to enter congested areas as it is easily maneuvered, which help to capture close visual of the findings. During emergency, the mini-ROV can be mobilized instantly at site to support any GVI related scope. PETRONAS has successfully deployed this technology at four platforms in one of the operating regions from 2017 to 2021 with cost saving of 30%–50% compared to conventional method. The successful implementation in PETRONAS can become benchmark and reference for other Oil & Gas operators as an alternative to conduct optimized RBUI scope which can contribute to lower Operating Expenditure (OPEX).
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