青山矿区水文地质控气特征研究

For coal-bed of Qingshan mining area, the buried depth is moderate, the recoverable layer number is multiple, the total thickness is large, the coal structure is relatively complete, the permeability is relatively good, the preservation condition is well, the CBM content is high. Through Hydrogeological and coincident analyses of CBM-bearing properties in research area, we divided the hydrogeological controlled properties of CBM, and then find: Qingshan mining area is a coal basin of water trap syncline. Hydraulic closure and plugging cause the CBM enrichment; Hydraulic closure between different Rock cause the multiplayer superposition with independent CBM-bearing System.