Perpustakaan Digital ITB

The decline production from mature fields in Indonesia has created a demand for more effective well stimulation techniques. This study evaluates the integrity and performance of Well X after hydraulic fracturing in the AA-1 and BB-1 sandstone formations. The primary objective is to assess whether the casing, liner, and tubing can withstand burst, collapse, and axial stresses induced by hydraulic fracturing. A comprehensive triaxial stress analysis was performed using Landmark Stress Check software, considering the combined effects of these stresses. The burst, collapse, and axial ratings of the casing, liner, and tubing were all calculated according to API standards, and the results confirmed that all components met the required strength specifications, ensuring their ability to withstand the induced stresses. The Inflow Performance Relationship (IPR) and nodal analysis were used to evaluate the production rate before and after fracturing. The results showed significant improvements in production, with the production rate increasing from 512.53 STBD to 1889.07 STBD. This study underscores the effectiveness of hydraulic fracturing in enhancing well productivity and maintaining well integrity, particularly in mature fields. The analysis highlights the importance of conducting stress evaluations and monitoring production rates to optimize hydraulic fracturing treatments, ensuring both operational safety and long-term wellbore performance. The findings of this study provide valuable insights for improving well management practices and ensuring that well integrity is maintained throughout the life cycle of a well in the oil and gas indus try.