Evaluation for offshore carbon dioxide geological storage potential in the gulf of Thailand

Currently climate change is one of the most concern problems because of an increase in the amount of carbon dioxide (CO2) in the atmosphere. This gas comes from the industries like power generation. Carbon capture and storage (CCS) is the practical technology to mitigate CO2 especially geological storage. In Thailand, the main potential of geological storage is in the Gulf of Thailand especially in the oil and gas fields. However, the research on this in Thailand is scarce. Consequently, this work is focusing on the simulation of CO2 geological storage in the formations of oil and gas reservoirs in the Gulf of Thailand. The fracture pressure and the storage capacity have been estimated. Also, the pressure buildup and plume migration have been simulated with various conditions by using real geological data in the area. CO2 injection is used from 1,000-4,000 tons per day with the depth from 2,000-2,500 meters and the results are studied for 50 years as a monitoring period. The results present that with the actual formation characteristics, CO2 storage in this area has potential. Moreover, pressure buildup and plume migration are presented the storage and monitoring for 50 years. As a fundamental knowledge, this study can contribute to CO2 storage in an offshore area in Thailand.