摘要
鄂尔多斯盆地煤层气资源丰富，是煤层气勘探热点地区之一，石炭系一二叠系煤层厚度大、分布稳定．是盆地煤层气勘探重点层位。通过对盆地石炭纪一二叠纪沉积体系演化及聚煤规律研究，深化富煤中心发育条件及迁移规律的认识。重点分析主要成煤期本溪期和山西期主力煤层沉积环境和聚煤特征，并据此计算盆地石炭系一二叠系煤层气资源量，评价煤层气勘探前景。
The Ordos basin is rich in CBM （coalbed methane） resources, as one of hot spots for CBM exploration. With a big thickness and stable distribution of coal seams, Carboniferous - Permian of the basin is the key horizons for CBM exploration. Understanding of the development conditions of coal enrichment center and their inigration law is deepened through researches of sedimentary system evolvement and the law of coal enrichment in Carboniferaous-Permian of the basin. We focus on the analysis of depositional environment and coal enrichment characteristics of the mainstay coal seams during the major coal-forming periods of Benxi and Shanxi stages, accordingly work out CBM resources of the Carboniferous - Permian, and evaluate the CBM exploration prospects.
关键词
鄂尔多斯盆地
沉积体系
聚煤环境
资源评价
煤层气
Ordos basin
depositional system
coal enrichment environment
resource evaluation
CBM
