Perpustakaan Digital ITB

Indonesia’s oil production has been declining over the past decades, meeting only about half of the national daily demand. One of the solutions is to improve the productivity of existing wells through hydraulic fracturing. This study focuses on the GAOL-43 well in the Talang Akar Formation (TAF), which is characterized by lowto- moderate permeability and high formation pressure, making it a suitable candidate for stimulation. The research methodology includes geomechanical analysis using well log data to determine mechanical rock properties such as Young’s modulus, Poisson’s ratio, and Unconfined Compressive Strength (UCS). These parameters were used to design the hydraulic fracturing treatment through simulation with proppant mass sensitivity analysis. The results, supported by Unified Fracture Design calculations, showed the best fracture geometry with an FCD of 1.605, a half-length of 106.2 ft, and a width of 0.241 in. Well productivity evaluation using the Fold of Increase (FOI) method indicated a successful productivity enhancement, with the Cinco, Samaniego & Dominguez method considered the most reliable. The results demonstrate that integrating geomechanical interpretation and proppant mass sensitivity effectively improves hydraulic fracture design and well performance. More importantly, the findings highlight the applicability of this method for optimizing oil recovery in the Talang Akar Formation and provide practical insights for its implementation in other well across Indonesia with similar characteristics.