The Guanzhai exploration area is situated in the northern part of Zhina coalfield, coal seams have specialty of“multiple seam numbers, thin thickness and distributed in groups”. Using methane content testing, injection/pressure drawdown testing, borehole coal seam and coal mass structure frequency statistics, as well as coal, rock fracture observation methods, carried out systematic analyses of coal reservoir methane-bearing property, permeability, reservoir pressure and ground stress etc. Using volumetric method estimated CBM resources in Guanzhai exploration area, initially evaluated CBM workability and resource potential. The CBM geology, reservoir condition analysis and exploitation project practices have shown that CBM in the area has good preservation condition, high methane content, large resources and resource abundance, better workability with superior exploitation and utilization potential. Taking the coal seam group as target producing formation, to carry out single well, multiple producing formations integrated exploitation are the major development orientation of Guanzhai exploration area and even southwestern China CBM exploitation.%官寨勘探区位于贵州织纳煤田北部，煤层发育具有“层数多、厚度薄、成群分布”的特点。采用气含量测试、注入/压降试井、钻孔煤层和煤体结构频度统计以及煤岩裂隙观测等方法，对煤储层含气性、渗透性、储层压力和地应力等进行了系统分析。采用体积法估算了官寨勘探区煤层气资源量，初步评价了煤层气可采性和资源潜力。煤层气地质、储层条件分析和开发工程实践表明，官寨勘探区煤层气保存条件好，气含量高，资源量和资源丰度大，可采性较好，具有较大的开发利用潜力；将煤层群作为目标产层，进行单井、多产层合层开发是今后官寨勘探区乃至西南地区煤层气开发的重要发展方向。
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