Analysis on 6#Coal Reservoir Features and Favorable Exploration Area Evaluation in Chahe Block of Bijie City,Guizhou
Based on coal geological exploration,it studies on 6#coal reservoir features and favorable explora-tion area.The analysis considered that the principal 6# coal seam is rather thick in Chahe block with an average of 5.92 m,the major component of coal-bed gas is CH4.The average CBM content of the principal coal seams is 20.48 cm3/t,which dominated by CBM.The different structural positions of Chahe Syncline have a great in-fluence on the distribution characteristics of coal thickness and the gas content of 6# coal seam.On the bases of comprehensive analysis,the CBM favorable exploration areas were preliminarily delineated.Among them,the acreage of the most favorable and the second favorable area respectively is 38.63 km2,36.44 km2.The amount of coalbed gas resources is 122.70 million cubic meter,and the resource abundance is 1.63 million m3/km2.The research shows that this block has a certain favorable exploration area and abundant resources,which is suitable for further CBM exploration.