Gas-bearing characteristics and its main controlling factors in low-rank coal seams of the Wujianfang Basin, North China.

Combined with the characteristic that the burial depth of the Damoguaihe Formation coal seams decreases from northeast to southwest, the spatial variation in permeability shows a decreasing trend with increasing burial depth.

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The adsorption curves of the coal samples indicate that as pressure increases from 0 to 12 MPa, the adsorption capacity shows an increasing trend.

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