Pore Structure and Fractal Character of Lacustrine Oil-Bearing Shale from the Dongying Sag, Bohai Bay Basin, China
Table 1
Geochemical characteristics and mineral compositions of shale samples.
Sample
Depth/m
Organic matter
Mineral composition/%
TOC/%
/mg/g
/°C
CL
Q
O
P
C
D
B172-1
3407.4
2.06
1.5014
443
30.3
12.2
0.0
1.9
42.6
7.5
B172-2
3407.6
0.53
0.1072
450
54.8
22.9
1.0
5.8
11.0
4.5
F169-5
3761.1
0.55
0.1065
428
58.2
16.9
0.8
4.7
10.6
8.8
F169-1
3697.0
0.67
0.167
440
39.8
30.8
1.8
11.1
6.1
10.3
F169-2
3760.8
0.51
0.1008
417
36.7
24.1
1.5
10.1
16.7
5.9
H172-1
3336.8
3.15
2.0967
441
43.9
19.6
0.5
1.1
26.9
1.0
Y556-3
2970.0
2.36
1.0230
438
27.6
22.3
1.7
5.7
19.9
15.7
N15-1
3276.4
2.25
1.2164
441
25.5
13.1
1.3
6.8
41.3
8.9
H172-3S
3426.9
3.37
4.1145
441
52.6
20.9
0.5
2.0
15.2
1.9
H172-4S
3428.6
2.83
2.7574
440
50.8
27.8
0.5
2.1
9.9
5.2
LX884-1
3506.2
2.52
2.9565
443
30.0
26.0
0.2
2.7
18.7
17.5
Y556-1
2448.3
2.68
0.4580
435
37.0
20.0
1.7
2.5
31.6
0.0
Y556-2
2516.2
2.62
0.4749
437
32.8
19.8
1.8
3.0
25.6
6.9
LX884-2S
3502.4
3.73
4.6931
446
43.7
21.7
0.5
3.6
3.2
22.5
N5-4S
2605.5
1.99
0.7651
440
20.4
7.7
1.3
3.2
60.3
5.2
Y556-5S
2448.2
3.17
0.6281
433
33.4
13.8
1.6
2.1
40.2
3.6
F169-4
3757.4
1.28
4.0867
428
7.8
46.8
2.9
31.5
8.3
2.7
F41-3
2693.9
1.19
1.4087
434
13.2
33.3
8.5
32.2
8.3
4.5
F41-2
2679.3
1.66
0.2880
439
14.0
38.7
5.8
18.5
11.2
6.6
L752-3
3550.1
1.33
0.8941
445
7.7
5.8
0.1
2.2
22.0
55.8
L76-2
3780.4
0.36
0.0942
452
28.9
40.0
2.8
14.2
1.8
8.9
N5-3
2740.8
0.16
0.1232
443
2.6
43.0
5.1
16.8
14.7
14.0
N5-5S
2642.1
4.55
1.6116
423
36.8
25.8
1.0
7.1
14.6
5.0
B172-3
3405.6
0.87
0.1776
440
14.8
35.5
2.5
10.3
6.1
30.8
F169-3
3697.8
0.59
0.1163
444
58.2
16.9
0.8
4.7
10.6
8.8
H88-1
3042.6
1.44
0.2163
442
55.5
30.8
2.1
7.9
3.6
0.0
H88-2
3044.6
1.70
0.2335
443
46.2
21.3
4.7
5.5
12
5.9
L752-2
3560.1
0.60
0.1161
449
46.1
26.3
4.3
11.1
3.5
4.8
L76-1
3783.6
0.32
0.0941
463
32.1
37.7
4.8
10.5
2.3
8.3
TOC stands for total organic carbon; denotes Rock-Eval measured oil content at 573.15 K; indicates pyrolysis hydrocarbon peak temperature; Cl, Q, O, F, C, and D represent clay minerals, quartz, orthoclase, plagioclase, carbonate, and dolomite, respectively.
