Underground coal gasification technology impact on coal reserves in Colombia

Abstract

I conventional mining technologies. In this article available volume, can be increased, given the in Colombia as a contributor to the national GDP.of reserves not accounted for (proved reserves

Study on environmental quality and hazard identification of underground coal gasification project: A literature study and field survey

“…The UCG system covers underground coal seams (reserve, composition etc. ), wells (injection and production), and installations for air/oxygen tank and gas productions presented in Figure 1 (Krause, 2011 Murillo, 2013;Mocek et al, 2015):  the top and bottom layers of coal seam must be impermeable layers;  the coal seam thickness should be more than 5 m;  the coal seam must be located over 200 m of depth ;  the condition is not a complex geological structure;  coal ash and moisture content are less than 60%;  the minimum coal reserve is about 150 million tons to produce 155 mmscfd of energy for 25 years.…”