华北石炭系、二叠系煤层含气性及前景

GAS-BEARING PROPERTY AND HYDROCARBON POTENTIAL OF COAL SEAM IN CARBONIFEROUS AND PERMIAN, NORTHERN CHINA

据丰富的资料对华北石炭、二叠系煤层含气性进行了研究。提出了煤层演化变质程度、煤岩组分中镜质组含量、灰分产率、顶板岩性和上覆有效地层厚度是影响煤层含气性的主要地质因素。依据影响煤层含气性因素对华北石炭系、二叠系煤层含气性前景进行了初步分析。

This paper studied the gas-bearing property in Carboniferous and Permian of northem China based on abundant data, and pointed out that diagenetic metamorphism of coal seam, vitrinite content and ash content of coal, lithology of top layer and effective thickness of overburden layer control the gas-bearing properiy of coal seam. Based on these, an analysis of the gas-potential of Carboniferous and Permian coal seam in northern China were made preliminarily.