A group of International Oil and Gas Producer (IOGP) members have established the Normally Unattended Facilities (NUF) Task Force aimed to position NUF as safe, cost-effective, widely accepted design and operating method for oil & gas facilities. The establishment of the Task Force was driven by the need to standardize, expand the NUF concept to all type of facilities and ensure industry wide acceptance of NUF standardization. To meet these objectives, the Task Force has produced a white paper to outline the design principles, anticipated challenges and enablers to allow for the implementation of a standard NUF design. NUF will enable oil and gas facilities to be remotely operated in a safe and reliable manner with no crew visitation for determined periods of time. However, this requires a change in the approach to designing, constructing, operating, and maintaining the facility. The NUF Task Force focused on cost compression, unattended duration and sustainability through reduced carbon emissions as key objectives in NUF design optimization. The proposed NUF design will reduce carbon emissions through high reliability, low emission equipment selection and reduction of marine vessels utilization. Technology advancement will allow for lean design, remote control and analysis to efficiently and effectively plan maintenance and optimize operations. Brownfield quick wins will provide avenue for technology maturity, drive for higher reliability and improving overall asset performance. These help in shifting the mindset of personnel involved. Change management is required for governance & procedural changes whilst human retooling will be required for the new skillsets. The main value drivers that support NUF implementation include but, are not limited to, the anticipated reduction in HSE risk exposure to personnel, a substantial reduction in CAPEX and OPEX, and lower greenhouse gases, with reliability better than or equal to attended facilities. Some standards and regulations may need to be revised to enable NUF application. At present, this is being investigated by IOGP under JIP39. NUF concepts can be applied to any facility (onshore and offshore) and will be greatly facilitated by some level of standardization. This would create economies of scale for both the qualification and fabrication of equipment and sub-systems. Substantial potential value drivers supporting the move to a standard NUF approach: HSE Risk reduction due to elimination of personnel during normal operations Potential 20-30% CAPEX reduction in facility cost Potential 20-30% OPEX reduction in operating and logistics expenses Reliability better than or equal to attended facilities Green House Gases (GHG) footprint improvement

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PETRONAS has been developing the Concept Factory++ (CF++) Front End Digitalization application since early 2021. The CF++ application has been rolled out using Agile development methodology and is currently being utilized in Screening and Feasibility Front End studies. CF++ has unlocked significant value in quality, speed, cost, and user experience compared with conventional work processes. This paper details the CF++ automated Front End work process, its integration within the digital development planning workflow, and provides an assessment of CF++ Value Creation compared to conventional work processes previously utilized. The key motivations for digitalization were a highly manual process, inability to integrate across domains and dataset, speed leakage and potential of non-conformances due to data handling and inconsistencies. PETRONAS’ Front End transformation digitalizes the conventional work processes and enhances the concept ideation, technical-commercial definition, and knowledge capture processes. Process enhancements include integrated Front End technical and cost analytics engines, and broader enterprise digital Field Development processes to promote collaborative working space; maximize the use of extensive internal project data, and embedded Best in Class benchmarking. Throughout the development, CF++ was heavily stress tested to validate the techno-commercial engine and the end-to-end integration from data input to report automation. A project analysis comparing use of CF++ vs. conventional work processes was completed to determine improvement in speed, quality and cost. The paper will present savings in speed, cost and accuracy by comparing CF++ outputs against the manual process deliverables from out turn projects. CF++ created value across all areas, with key savings drivers reviewed. Analysis shows that CF++ also provides significant accuracy improvement earlier in the FEL process, allowing reduced contingency to be applied. The Front End digitalization process identified significant value to stakeholders through increased pace of delivery, improved early concept definition with limited human intervention, increased cost accuracy, and increased confidence in the results through replicatability, improved data supply and benchmarking rigour. CF++ also enhanced Field Development Team's experience through improved collaboration and flexible integration with the subsurface and economics tools and database. A number of challenges through the transformation process were identified and will be presented. This includes the extensive verification requirements due to the tool complexity, to assure quality of coding at module level and during the end-to-end test. Fully integrated Front End process digitalization has rarely been attempted within E&P companies. Further, incorporating knowledge and learning insights within process analytics allows for optimization and Best in Class solutions to be delivered digitally. Using the agile approach, CF++ will be augmented with new business and sustainability modules to achieve strategic business objectives.