OPTIMIZING WATERFLOOD STRATEGIES IN OIL FIELD A: PARAMETER EVALUATION AND SIMULATION MODELING FOR ENHANCED RECOVERY BACHELOR THESIS Rama Aby Ichsan Akbari 12219041 Submitted as partial fulfillment of the requirements for the degree of BACHELOR OF ENGINEERING in Petroleum Engineering study program PETROLEUM ENGINEERING STUDY PROGRAM FACULTY OF MINING AND PETROLEUM ENGINEERING INSTITUT TEKNOLOGI BANDUNG 2023 OPTIMIZING WATERFLOOD STRATEGIES IN OIL FIELD A: PARAMETER EVALUATION AND SIMULATION MODELING FOR ENHANCED RECOVERY BACHELOR THESIS Rama Aby Ichsan Akbari 12219041 Submitted as partial fulfillment of the requirements for the degree of BACHELOR OF ENGINEERING in Petroleum Engineering study program Approved by: Thesis Advisor, Prof. Ir. Taufan Marhaendrajana, M.Sc., Ph.D. NIP. 196801171993021001 OPTIMIZING WATERFLOOD STRATEGIES IN OIL FIELD A: PARAMETER EVALUATION AND SIMULATION MODELING FOR ENHANCED RECOVERY Rama Aby Ichsan Akbari 1 , Prof. Ir. Taufan Marhaendrajana, M.Sc., Ph.D. 2 Copyright 2023, Institut Teknologi Bandung Abstract Despite Indonesia's ambitious production targets for oil and gas, the country faces challenges due to declining production rates, primarily influenced by mature fields. Waterflood, as a secondary oil recovery technique, has emerged as a cost-effective approach to maximize hydrocarbon reserves. The performance of waterflood operations depends on key parameters, such as the number of injection wells and the injection well pattern. This study focuses on optimizing waterflood parameters in the reservoirs of Field A, with the goal of enhancing oil recovery and maintaining reservoir pressure. Simulation models are utilized to analyze various waterflood scenarios, assessing impacted variables including reservoir pressure, production rates, total oil production, and residual oil saturation. Through a comprehensive case study, the effects of various parameters influenced by waterflood, and its well pattern are examined, providing valuable insights and recommendations for the development of optimized waterflood operations. The insights and recommendations resulted by this study aim to support reservoir management, ensure energy security, and enhance the performance of waterflood as a highly efficient secondary oil recovery method utilized in Indonesia. Keywords: waterflood, well pattern, enhance oil recovery, maintaining reservoir pressure, recommendations Sari Meskipun Indonesia memiliki target produksi yang ambisius untuk minyak dan gas, negara ini menghadapi tantangan akibat penurunan tingkat produksi, terutama dipengaruhi oleh lapangan-lapangan tua.