Pore Structure and Fractal Character of Lacustrine Oil-Bearing Shale from the Dongying Sag, Bohai Bay Basin, China

Table 2

Pore parameters of study samples from NGA.

Sample	Loop type	BET SSA (m^2/g)	Pore volume (10^-3 cm^3/g)	/nm	Pore percentages/%
					<25 (nm)	25-100 (nm)	>100 (nm)
B172-1	H2	8.738	15.3	7.01	64.60	21.94	13.46
B172-2	H2	25.493	30.6	4.81	73.14	19.00	7.86
F169-5	H2	29.141	31.5	4.32	78.26	16.48	5.26
F169-1	H2	28.909	32.1	4.44	74.40	18.77	6.83
F169-2	H2	26.743	28.2	4.22	74.58	17.12	8.30
H172-1	H2	9.530	21.9	9.20	41.32	37.67	21.01
Y556-3	H2	3.347	7.2	8.61	48.78	27.97	23.25
N15-1	H2	3.9630	16.2	16.32	37.26	46.97	15.77
H172-3S	H2	4.326	12.4	11.43	40.70	36.31	22.99
H172-4S	H2	12.432	24.3	7.81	57.58	29.66	12.76
LX884-1	H2-H3	12.530	32.7	10.43	53.88	30.10	16.02
Y556-1	H2-H3	14.778	48.4	13.09	40.85	40.14	19.01
Y556-2	H2-H3	10.034	41.0	16.36	35.71	40.59	23.70
LX884-2S	H2-H3	13.198	33.5	10.17	58.99	29.02	11.99
N5-4S	H2-H3	3.065	15.0	19.57	28.92	43.78	27.30
Y556-5S	H2-H3	15.115	41.6	11.00	42.88	42.71	14.41
F169-4	H3	1.512	6.0	15.77	37.00	33.47	29.53
F41-3	H3	4.1510	12.1	11.68	40.81	38.35	20.84
F41-2	H3	10.584	22.5	8.50	48.27	34.10	17.63
L752-3	H3	2.240	6.5	11.62	41.54	31.86	26.60
L76-2	H3	12.283	27.3	8.88	61.01	26.89	12.10
N5-3	H3	5.717	12.8	8.94	47.89	28.32	23.79
N5-5S	H3	5.720	18.6	13.00	31.12	37.77	31.11
B172-3	H4	4.450	9.0	8.12	55.21	26.84	17.95
F169-3	H4	17.923	25.3	5.65	68.72	21.49	9.79
H88-1	H4	34.002	40.4	4.76	67.62	22.64	9.74
H88-2	H4	20.405	30.8	6.04	60.18	26.84	12.98
L752-2	H4	21.992	25.0	4.54	72.41	18.82	8.77
L76-1	H4	33.695	41.6	4.94	79.06	13.84	7.10

SSA is the special surface area; is the average pore diameter.