澳大利亚昆士兰州EPC1763区块煤炭资源聚煤规律研究

Study on Coal Accumulation Pattern in Block EPC1763,Surat Basin,Queensland,Australia

通过对以往钻孔、勘查成果、成煤环境、煤层厚度变化规律的研究,认为该区煤炭资源形成于陆相三角洲平原,主要控煤因素是三角洲平原上发育的分支河道沉积。分析分支河道砂体沉积及煤层厚度变化特征,归纳出本区的聚煤规律,对于优化勘查设计,指导资源勘查及在富煤中心区域开展工作有重要指导意义。

Through previous studies on drilling and exploration data,coal-forming environment,and coal seam thickness variation pattern,have considered that the coal resources in the area have been formed in a terrestrial delta plain,and coal deposit is mainly controlled by distributary channel deposits development on delta plain.After studied the distributary channel sand mass sedimentary and coal thickness variation features,have summed up coal accumulation pattern in the area.The study has important guiding significance in exploration design optimization,coal resources exploration guidance in coal enrichment center area.