ANALYSIS OF THE IMPACT OF CO2 INJECTION PARAMETERS TOWARD ADDITIONAL RECOVERY FACTOR AND BREAKTHROUGH TIME IN AN ENHANCED GAS RECOVERY SIMULATION ON THE LIMESTONE RESERVOIR "TA" FIELD, INDONESIA. BACHELOR THESIS Alief Rachman Surya Putra 12219025 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 ANALYSIS OF THE IMPACT OF CO2 INJECTION PARAMETERS TOWARD ADDITIONAL RECOVERY FACTOR AND BREAKTHROUGH TIME IN AN ENHANCED GAS RECOVERY SIMULATION ON THE LIMESTONE RESERVOIR "TA" FIELD, INDONESIA. BACHELOR THESIS Alief Rachman Surya Putra 12219025 Submitted as partial fulfillment of the requirements for the degree of BACHELOR OF ENGINEERING in Petroleum Engineering study program Approved by: Thesis Adviser, Prof. Ir. Taufan Marhaendrajana, M.Sc., Ph.D. NIP. 196801171993021001 1 ANALYSIS OF THE IMPACT OF CO2 IN JECTION PARAMETERS TOWARD ADDITIONAL RECOVERY FACTOR AND BREAKTHROUGH TIME IN AN ENHANCED GAS RECOVERY SIMULATION ON THE LIMESTONE RESERVOIR "TA" FIELD, INDONESIA. Alief Rachman Surya Putra* and Prof. Ir. Taufan Marhaendrajana, M.Sc., Ph.D.** Copyright 2023, Institut Teknologi Bandung Abstract Carbon Capture Utilization and Storage (CCUS) is expected to be a key technology in reducing CO 2 emissions and limiting global temperature rise below 2°C. This technology can directly capture CO 2 from the air and store it in reservoirs (International Energy Agency, 2019). CCUS is predicted to reduce carbon emissions by up to 9% by 2050. Not only does CCUS store carbon emissions, but it can also be used to enhance the recovery factor in both oil and gas fields. In this context, CCUS is divided into two categories: Enhanced Oil Recovery (EOR) and Enhanced Gas Recovery (EGR). Numerous studies have been conducted to improve this technology. In Indonesia, the focus of research is more on oil fields than gas fields. One reason for this is the relatively lower economic attractiveness of increasing the recovery factor in gas fields. However, it is important not to overlook the potential application of CCUS technology in gas fields in the future. This study aims to investigate the influence of injection parameters on CO 2-EGR implementation using a compositional model. The parameters include injection rate, start time of CO 2 injection, and location of perforations in relation to the increase in recovery factor and breakthrough time of injected CO 2 in production wells.