Perpustakaan Digital ITB

Hydraulic fracturing is a well stimulation technique that enhances hydrocarbon production by creating conductive pathways in low-permeability formations through high-pressure fluid injection and proppant placement. The success of this treatment largely depends on optimal proppant selection and placement, which directly influences fracture conductivity and well productivity. This study evaluates the optimization of hydraulic fracturing design through proppant mass sensitivity analysis in Well X, an offshore well located in East Java Province, Indonesia. Six scenarios with varying proppant masses ranging from 25,000 to 250,000 lb were analyzed to determine the most profitable design while considering Production Sharing Contract (PSC) Cost Recovery mechanisms. The research methodology integrates hydraulic fracturing simulation, production performance analysis through nodal analysis, and economic evaluation. The fracturing simulation results show improvements in fracture geometry and conductivity with increasing proppant mass, with Scenario 6 achieving the largest fracture half-length of 374.3 ft and conductivity of 3,100 ft.md. Nodal analysis reveals significant production enhancement, with oil rates increasing from 1,193.80 STB/D in Scenario 1 to 2,511.44 STB/D in Scenario 6. Economic evaluation under PSC terms indicates that Scenario 6 yields the highest NPV of 6.15 MMUSD with an IRR of 41% and the shortest payback period of 1.93 years (23 months). The study concludes that higher proppant mass treatments, despite increased initial investments, generate superior economic returns through enhanced production rates. Keywords: Hydraulic Fracturing, Proppant Mass Sensitivity, Nodal Analysis, Production Sharing Contract (PSC) Cost Recovery, Economic Evaluation.