我国低煤阶含煤盆地煤层气地质勘探和研究的程度较低,勘探开发试验一直没有取得实质性突破。分析了三塘湖低煤阶盆地的煤层发育、煤层含气性与吸附性等特征,探讨了水文地质条件对煤层气富集的影响,结合初步试采成果,认为该盆地具有一定的煤层气勘探潜力,条湖—马朗凹陷是盆地内煤层气勘探的首选区块。 China’s low-rank coal-bearing basins have a low degree of geological prospecting and research on CBM. Experiments on exploration and development have not achieved substantive breakthroughs. This paper analyzes the characteristics of seam development, coalbed gas content and adsorption in the low rank coal rank basin of Santanghu Lake, and discusses the effect of hydrogeological conditions on the enrichment of coalbed methane. Combined with the preliminary test results, it is considered that the basin has certain CBM Exploration potential. The Lake-Malang Depression is the preferred block for CBM exploration in the basin.