MONITORING OF CO? PLUME USING TIME-LAPSE VSP TECHNIQUE FOR CCS PROGRAM IN THE

• Main Author: Nuur Rahmatullah, Arsy
• Format: Final Project
• Language: Indonesia
• Online Access: https://digilib.itb.ac.id/gdl/view/87175
• Institution: Institut Teknologi Bandung

Global warming caused by the accumulation of greenhouse gases such as CO? and methane significantly impacts the environment and human life. Indonesia, as the ninth-largest CO? emitter in the world, is committed to achieving net zero emissions by 2060 in accordance with the Paris Agreement. One of the key efforts to reduce carbon emissions is the implementation of Carbon Capture and Storage (CCS) technology, which involves capturing carbon emissions and storing them in geological formations underground. To ensure the safety of this storage, monitoring the evolution of injected CO? plumes is crucial. The time-lapse Vertical Seismic Profiling (VSP) method, particularly utilizing Distributed Acoustic Sensing (DAS), offers high-resolution monitoring at a more cost-effective rate compared to other methods. This research aims to develop a 3D subsurface model to simulate CO? injection and monitor plume movement. The process begins with the construction of a 3D velocity model for time-to-depth domain conversion. Then, a 3D velocity model is constructed for conditions before and after CO? injection. This model serves as the basis for seismic simulations, producing synthetic data for pre- and post-injection conditions using NORSAR software. The data is then processed using the Kirchhoff Target Migration method within the NORSAR workflow to generate seismic images that clearly depict the distribution and presence of CO? plumes.