2012
Selected Barakar coal samples collected from coreholes/wells of eastern part of North Karanpura CBM Block were analysed for integrated laboratory studies to find out coalbed methane prospectivity of the area. Five Barakar coal seams occur regionally with thickness in the range 1-22m with cumulative thickness up to 70m. The coals have low to moderate moisture and ash content. Volatile matter decreases with increasing depth, but there is no relationship between ash content and depth. The vitrinite reflectance (VRo) found in the range of 0.65-1.22% indicates high-volatile-C- bituminous to mediumvolatile-bituminous rank coals.
Gondwana, coalbed methane, gas content, volatile matter, maceral, vitrnite, adsorption isotherm, carbon isotope, dry, ash-free (daf)