Perpustakaan Digital ITB

This study applies the Unified Fracture Design (UFD) methodology to optimize acid fracturing treatments in Well X, focusing on selected limestone formations. The objectives are to enhance fracture conductivity and the productivity index through precise design modifications and to conduct a sensitivity analysis on the influence of reservoir permeability and fracture half-length. The methodology involves using the Nierode and Kruk (1973) correlation, along with Fracpro software, to estimate acid fracture conductivity and applying the UFD approach to determine the optimal fracture geometry. Sensitivity analysis was conducted using theoretical calculations to assess the impact of varying permeability and fracture half-lengths on the productivity index. The findings reveal significant variability in the productivity index based on permeability and fracture geometry across different limestone formations. Canyon limestone exhibited the most robust performance due to its higher rock embedment strength, suggesting it as the best candidate for acid fracturing under diverse operational conditions. Conversely, Indiana limestone showed considerable sensitivity to the tested parameters, indicating potential challenges. This study emphasizes the importance of tailoring fracture designs based on specific rock properties to optimize acid fracturing effectiveness. The results underscore the necessity of integrating detailed rock property data into the UFD methodology, particularly for adapting to the unique geological characteristics of Indonesian limestone formations. This approach enhances both the accuracy and effectiveness of fracture designs, providing valuable insights into the optimization of acid fracturing treatments in complex reservoir environments.