Perpustakaan Digital ITB

Global gas demand continues to rise, positioning natural gas as a cleaner fossil fuel in the transition towards low-carbon energy systems. To meet this demand, tight gas reservoirs have become increasingly important, yet many of these formations cannot deliver sufficient rates without stimulation. Hydraulic fracturing is widely recognized as an essential stimulation technique to improve well productivity that overcomes those challenges. This study investigates the GL-E formation of XX Well in the BB Field, Natuna Sea, which is known to present challenging conditions. A geomechanical evaluation was carried out to determine the most favorable zone for fracturing treatment. Based on the integration of geomechanical parameters, the GL-E2 zone was identified as the optimal target because it combines higher Young’s modulus, lower Poisson’s ratio, and greater thickness compared to the other zones, indicating brittleness and fracture potential. Fracturing design and simulation were then performed with sensitivity analysis by varying the type and total mass of proppant. The results demonstrate that resin-coated sand (RCS) proppant at 220,000 lbs yields the most effective treatment scenario, achieving higher productivity improvement with a favorable cost-to-performance balance compared to ceramic proppant alternatives. Post-treatment evaluation through nodal analysis shows a substantial increase in gas production rate, from 4.84 MMscf/d to 16.85 MMscf/d. The findings emphasize that geomechanical screening and fracture design treatment can significantly enhance well productivity.