Evaluation of the Sajau Coal Formation's potential for Underground Coal Gasification in the Berau Basin, North Kalimantan, Indonesia.
- Country : Indonesia
- Subject : Geology
Keywords : Berau Basin, Sajau coal formation., UCG, Kasai, AHP.
Abstract
To effectively address the environmental challenges stemming from the use of low-calorie coal, underground coal gasification (UCG) technology emerges as a viable and innovative solution. UCG is a process that converts coal into synthetic natural gas, which can significantly reduce harmful pollution emissions compared to traditional coal combustion methods. The Berau Basin, located in North Kalimantan, Indonesia, is recognized as one of the country's most productive coal basins, containing substantial reserves of low-calorie coal. This study aims to meticulously identify potential sites within the Sajau Formation that are optimal for UCG development, focusing specifically on the extraction and utilization of low-calorie coal resources. In our assessment, we conducted a detailed evaluation of the coal seams in three key areas: the Kasai area, the Mangkupadi Block, and the Tanah Kuning Block. This evaluation involved a comprehensive analysis of various geological and coal characteristics to determine their suitability for UCG. The criteria used for screening included: Coal Rank, Seam Thickness. Coal Seam Depth, Depth-to-Thickness Ratio, Coal Seam Dip, roof and Floor Rock Types and Thickness, Coal Density, Geological Structure, and Coal Resources. Our findings indicate that the Kasai area exhibits particularly favorable conditions for UCG development, specifically with coal seam A, which achieved an impressive AHP weight of 92.30%. This highlights its exceptional properties for gasification. By harnessing these resources, the region has the potential to adopt a more sustainable energy approach, contributing to the reduction of carbon emissions and the promotion of cleaner energy alternatives.
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