The Upper Paleozoic natural gas in the napped belt of the western margin of the Ordos basin is coal measure gas with lower non hydrocarbon and higher hydrocarbon component concentrations.

• 摘要鄂尔多斯盆地西缘推覆带上古生界天然气为非烃类组分含量相对较低、烃类烃组分含量相时较高的煤成气。