Comparison of Geochemical Characteristics of Carboniferous and Permian-Triassic Natural Gas in Northeast Shichuan
川东北地区石炭系与二叠系—三叠系天然气地球化学特征对比研究

This paper studies the geochemical characteristics of natural gas in Carboniferous Huanglong Formation and Permian Chanxing Formation-Triassic Feixianguang Formation in the area of Northeast Sichuan.The results show that the natural gas belongs to high-mature dry gas,C2+ content is low,and the natural gas in Permian Chanxing Formation-Triassic Feixianguang Formation is drier than that in Carboniferous Huanglong Formation.The content of non-hydrocarbon gas of Permian Chanxing Formation-Triassic Feixianguang ...