The Permian system of East Henan is well developed and widely distributed.
豫东二叠系发育良好,分布普遍。
The clastic rocks in Permian System at the southeast area of Ordos Basin contain tremendous potential in exploration of natural gas.
鄂尔多斯盆地东南部二叠系碎屑岩具有巨大的天然气勘探潜力。
The gas produced from Qugu-1 Well in Linnan area proved that the main gas source rock was the coal bed of the Carboniferous-Permian System.
临南地区曲古1井产出的天然气证明是源自石炭系和二叠系煤岩。
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