f Integrated Geological Storage Assessment in Maturing Offshore Gas Field with Multi-stacked and Compartmentalized Reservoirs

In response to Thailand’s commitment to reduce greenhouse gas emissions by 40% and PTTEP’s ambition to reduce its greenhouse gas emission intensity by 30% in 2030, a screening and storage identification study was conducted to identify geological storage targets in Thailand. Our maturing offshore gas field has been identified as the first geological storage target, and since then, more detailed storage assessments have been conducted through a collaborative effort between our corporate and asset teams. In the assessment study, we have constructed an integrated dynamic-geomechanics-geochemical model using comprehensive and systematic workflows to optimize storage capacity without compromising reservoir injectivity and containment integrity. The results have now been passed to our well engineering and surface facility engineering teams for further evaluation. Simultaneously, we are engaging in communication with partners and regulators to obtain the necessary approvals to proceed with the first geological CO2 sequestration project in Thailand.