Micropore Characteristics and Gas-Bearing Characteristics of Marine-Continental Transitional Shale Reservoirs in the East Margin of Ordos Basin

Table 1

Geochemical parameters of shale gas reservoir samples from Lower Shihezi group to Taiyuan group in Y1 well.

Sample No.	Sampling level	Sampling depth; /m	Lithologic	TOC; /%	Organic matter type	/%	/°C	(); /(mg/g)
Y1-5	Lower Shihezi group	1394.09	Sandy mudstone	0.67	Type III	1.85	478.09	0.359
Y1-8	Lower Shihezi group	1414.7	Siltstone	0.73	Type III	1.71	469.34	0.2217
Y1-30	Taiyuan group	1486	Sandy mudstone	2.07	Type III	1.84	489.76	0.7513
Y1-39	Taiyuan group	1523.1	Siltstone	1.2	Type III		473.51	0.4404
Y1-45	Taiyuan group	1540.15	Mudstone	0.71	Type III	1.94	478.09	0.276
Y1-46	Taiyuan group	1543.7	Siltstone	2.75	Type III		483.51	0.7809
Y1-50	Taiyuan group	1558.2	Sandy mudstone	2.68	Type III	2.10	490.17	1.0163