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Assessment of CO2 Storage Potential in Tertiary Rocks, Thailand
- Publisher: European Association of Geoscientists & Engineers
- Source: Conference Proceedings, The Fourth EAGE Global Energy Transition Conference and Exhibition, Nov 2023, Volume 2023, p.1 - 5
Abstract
Summary
Carbon dioxide emission into the atmosphere is one of the important factors to increase the severity of climate change and global warming problems. Carbon capture and storage is the current technology to mitigate carbon dioxide in the atmosphere and store it in geological formations. The study aims to screen and evaluate the Cenozoic sedimentary rocks in Thailand, both onshore and offshore, for CO2 storage site selection purposes. The rock formations/units of 74 Tertiary basins were preliminarily chosen based on only geological criteria of the reservoir parameters relating to formation depth, net reservoir thickness, reservoir porosity, reservoir permeability, thickness of caprock, and structure styles of formations. After evaluation, 18 Cenozoic formations/units of 10 Tertiary basins (5 onshore, and 5 offshore basins) were selected, and pore volumes of each formation/unit were estimated. Five onshore basins are Fang, Lampang, Nong Bua, Nong Pai–Petchaboon, and Suphanburi, and five offshore basins are Kra, Malay, Nakhon-Srithammarat, Pattani, and Songkhla. All selected formations/units comprise interbedded clastic sedimentary rocks, including sandstones, siltstones, mudstones, claystones, and shales, deposited in fluvial, fluvio-lacustrine, lacustrine, fluvio-deltaic, or deltaic environments. The preliminarily selected sites can be used to limit the further study area for another criteria consideration.
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