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综合分析韩城北区块地震、地质、钻井及煤心分析资料,对煤层气成藏地质条件以及煤储层特征进行深入研究。认为该区构造特征、煤系地层封盖特征以及水文地质特征均有利于煤层气赋存。3~#煤层较11~#煤层更有利于煤层富集与开发,对3~#煤层确定有利标准,划分出有利区分布范围,对该区煤层气储量申报及勘探开发进程均具有重要意义。
Through comprehensive analysis of seismic, geologic, drilling and coal core analysis data of North Block of Hancheng, the geological conditions of coalbed methane accumulation and coal reservoir characteristics are further studied. It is believed that the tectonic features of the area, the capping characteristics of coal strata and the hydrogeological features are favorable to the occurrence of coalbed methane. Coal seam 3 ~ # is more conducive to the enrichment and development of coal seams than that of coal seam 11 ~ # 3. It sets favorable standards for coal seam 3 ~ #, and divides the distribution of favorable area. It is of great significance to the declaration of CBM reserves and exploration and development process in this area.