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

Table 1

Information of gas samples from Jiangye-1. See Figure 1 for the well location.

No.	Well	Depth (m)	Fm.
1	Jiangye-1	2540	Guanyintang
2	Jiangye-1	2545	Guanyintang
3	Jiangye-1	2562	Guanyintang
4	Jiangye-1	2568	Guanyintang
5	Jiangye-1	2574	Guanyintang
6	Jiangye-1	2580	Guanyintang
7	Jiangye-1	2585	Guanyintang
8	Jiangye-1	2590	Guanyintang
9	Jiangye-1	2595	Guanyintang
10	Jiangye-1	2602	Guanyintang
11	Jiangye-1	2612	Wangyinpu
12	Jiangye-1	2620	Wangyinpu
13	Jiangye-1	2635	Wangyinpu
14	Jiangye-1	2641	Wangyinpu
15	Jiangye-1	2655	Wangyinpu
16	Jiangye-1	2669	Wangyinpu

No. = sample number; Fm. = formation.