A Cause Analysis of the High-Content Nitrogen and Low-Content Hydrocarbon in Shale Gas: A Case Study of the Early Cambrian in Xiuwu Basin, Yangtze Region

<div>Hydrocarbon gas diffuses and nitrogen from atmosphere entrances through bedding planes, the detachment layer, and deep faults in section of EW303.4 through Xiuwu Basin. See Figure <a href="../fig1/">1</a> for the well locations.</div>

Geofluids

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Figure 9

Figure 9: A Cause Analysis of the High-Content Nitrogen and Low-Content Hydrocarbon in Shale Gas: A Case Study of the Early Cambrian in Xiuwu Basin, Yangtze Region 

Figure 9 | A Cause Analysis of the High-Content Nitrogen and Low-Content Hydrocarbon in Shale Gas: A Case Study of the Early Cambrian in Xiuwu Basin, Yangtze Region 