Geographic information system-based approaches for evaluating CO2 storage in Kalimantan basins, Indonesia

Abstract

To achieve the energy transition towards more environmentally friendly energy, various approaches must be taken, one of which is CO₂ source-to-sink matching. A basin evaluation study has been carried out through classifying, weighting, and scoring in the geographic information system (GIS) for screening and ranking basins for CO₂ storage on the island of Kalimantan, Indonesia. The region covers 13 sedimentary basins that have the potential to serve as CO₂ sinks. As many as 21 parameters have been analyzed through classification and weighting using a pairwise comparison matrix method to produce scores and ranks for each basin. The results show that the Kutai, Tarakan, and Barito basins are the top three basins for CO₂ storage potential. Singkawang, Nangapinoh, Pangkalanbun Utara, and Embaluh Selatan basins have been found to have the lowest sink potential.