Reservoir properties of Chinese tectonic coal: A review

Tectonic coal, formed after the intact coal being subjected to long-term intense squeezing, shearing and deformation, is characterised by brittle or ductile damaged coal body, with the characteristics of low cohesion, low strength and low permeability. Most of the outburst accidents in China occurred in tectonic coal seams due to the difficulties in gas drainage. In this review article, reservoir properties, including pore structure, adsorption,...