Pore Structure Petrophysical Characterization of the Upper Cretaceous Oil Shale from the Songliao Basin (NE China) Using Low-Field NMR

Table 1

Basic information of collected oil shale samples.

Upper Cretaceous Qingshankou (UCQ) formation					Upper Cretaceous Nenjiang (UCN) formation
Sample ID	Sampling well	Depth (m)	TOC (%)	Ro (%)	Sample ID	Sampling well	Depth (m)	TOC (%)	Ro (%)
F34	WF-122	1629.0	5.43	0.75	Y39	WY-72	1437.3	0.87	0.65
D05	WD-22	1921.3	1.67	0.80	Y40	WY-72	1438.0	0.79	0.65
T49	WT-X15	1943.1	2.15	0.80	F63	WF-186	984.2	0.94	0.60
Y38	WY-73	2325.8	2.07	1.30	J100	WJ-62	1667.0	1.13	0.75
G57	WG-616	1875.6	0.71	1.10	G80	WG-12	1390.3	0.97	0.60
G24	WG-72	2110.8	2.29	1.10	G82	WG-12	1705.7	3.78	0.70
A16	WA-151	2080.5	2.01	1.10	G77	WG-22	1521.0	1.07	0.75

TOC, total organic carbon; R_o, vitrinite reflectance. Locations of sampling wells are shown in Figure 1.