Effects of pore structure on methane adsorption behavior of ductile tectonically deformed coals: An inspiration to coalbed methane exploitation in structurally complex area

The distinctive pore structure of tectonically deformed coals (TDCs) has a considerable influence on their methane adsorption behavior, resulting in higher coalbed methane (CBM) pressure and higher CBM content, and thus increasing the difficulty of CBM development in TDCs distribution area (especially ductile TDCs). In this paper, the supermicropore-microfracture structures of primary structure coals (PSCs) and ductile TDCs from the Suxian...