The differences of pore and physical-chemical structure of coal body have great effect on adsorp-tion-desorption and releasing characteristics of coalbed methane. Based on understanding of pores, structures and mechanical properties of different coal body structures, the paper analysed coal body structure influencing the releas-ing of coalbed methane with field measured data. Results show that tectonism makes pore volume and specific surface area of coal body increase, and adsorption capacity enhanced. Gas content and lost gas present positive correlation;relations of rate of lost gas of different coal body structures were: primitive texture coal < reptured coal < fragmented coal展开▼
