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作者将华北地区煤层气勘探领域的水文地质环境划分为供水、强交替、弱交替、滞缓、停滞及泄水区带６种类型。认为大城地区为承压条件不显著的弱交替－滞缓水文地质环境，晋城地区为开启性弱交替水文地质环境，柳林地区为承压条件好的滞缓水文地质环境。通过对美国圣胡安、黑勇士盆地煤层气富集区、水文地质条件分析，提出距供水区较近，陡水势面背景下的平缓部位、重碳酸纳水型较高矿化度区、古水文地质继承性好的地区有利于煤层气富集。并选出吴堡河谷、三呼庄北、石楼西侧及固县东侧４个有利勘探区块。
The author divides the hydrogeological environment in CBM exploration in North China into six types: water supply, strong alternation, weak alternation, stagnation, stagnation and drainage zone. The area of Ayuthaya is regarded as a weak alternation-stagnant hydrogeological environment with insignificant pressure conditions. In Jincheng area, the weaker alternate hydrogeological environment is opened, and the Liulin area is a stagnant hydrogeological environment with good pressure conditions. Based on the analysis of the CBM enrichment areas and hydrogeological conditions in the San Juan and Black Warriors, USA, the authors put forward that the areas near the water supply area, the steep water surface, the gentle salinity area, Good hydrogeological inheritance favors CBM enrichment. And selected Wubao River Valley, Sanhu Zhuang North, west of Shilou and the eastern side of Gu County 4 favorable exploration blocks.