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Abstract This paper outlines the end-to-end process from selecting the concept of shunted open hole gravel pack (OHGP) completion to detailed design, execution, and the successful startup of a deepwater extended reach drilling (ERD) oil production well offshore Sabah, Malaysia – Well Boleh. Key challenges during the design and execution of the shunted OHGP include: Poorly consolidated formation sand: Sand production was predicted following production drawdown, necessitating sand control. Interbedded shales: Significant interbedded shales were expected within the reservoir payzones, especially as the well targeted multiple reservoir payzones. Open hole completion preference: Open hole gravel pack was preferred to maximize well productivity and longevity. Pressure depletion: Significant pressure depletion in the reservoir payzones lowered the reservoir formation strength, resulting in a narrow pressure margin between borehole stability and fracture pressures to perform gravel packing. ERD well trajectory: The extended reach drilling nature of the well trajectory added complexity to the deployment of the lower completion string and execution of the desired sand control. Shunted screens for gravel pack: To maximize the chances of achieving a full gravel pack, shunted screens were chosen to enable bypassed annular voids (due to losses, borehole collapse, etc.) to be fully filled with gravel with shunt activation as alternate path. Learnings and best practices from the concept selection, detailed design, and successful execution include: Value trade-off using Decision Quality approach: Evaluating different sand control methods without bias, considering subsurface uncertainties, completion complexities, and production targets. Technology screening: Confirming the maturity of shunted screens, open hole packers, autonomous inflow control devices (AICDs), and chemical tracers in screens. Open hole gravel packing modelling: Using advanced OHGP simulation software to fine-tune pumping parameters while staying within the narrow pressure margins. Integrated contingency planning: Facilitating discussions between Subsurface and Wells teams to develop contingency plans, including a what-if decision tree for fluid fill surprises in the payzone post-drilling. Wellbore strengthening and Managed Pressure Drilling (MPD) for lower completion: Navigating the narrow pressure margins with advanced wellbore strengthening and MPD deployment for lower completion. Gravel pack fluid design: Collaborating with vendors and internal experts to design and test gravel pack fluids, ensuring no surprises during execution. Delayed filter cake breaker optimization: Designing delayed filter cake breakers to minimize formation damage and mechanical skin. Lastly, the actual well performance post-gravel pack will be shared, highlighting good productivity and low mechanical skin.