Perpustakaan Digital ITB

Hydraulic fracturing is a key stimulation technique to enhance hydrocarbon recovery in low permeability reservoirs. This study investigates fracture propagation in selected zones and the influence of geomechanical parameters on fracture behavior. Potentially productive intervals were identified through composite log interpretation, while potential fracturing zones were evaluated based on mechanical properties. Hydraulic fracturing simulations were performed using PyFrac with a PKN model to represent height-contained propagation. Simulation results include fracture geometry, pressure distribution over time, and fracture growth characteristics. The simulation of selected zone showed that fracture propagation started in a viscosity-dominated regime and shifted to PKN behavior once the fracture reached height-confining layers. The fracture performance evaluation indicates an improvement in well productivity after hydraulic fracturing compared to the pre-fracturing condition. Sensitivity analysis on geomechanical parameters showed that higher Poisson’s ratio and Young’s modulus reduced fracture width and increased breakdown pressure, while higher fracture toughness resulted in wider fractures and higher initiation pressures. These findings highlight the significant impact of rock mechanical properties on fracture propagation, providing insights for selecting favorable zones or formulating appropriate stimulation strategies based on specific geomechanical conditions.