Table 2 N2 adsorption and desorption pore structure parameters.

From: Comprehensive analysis of reservoir comparison and controls on pore structure in the Wufeng-Longmaxi shale, Southern Sichuan

Sample ID

TOC (%)

Porosity (%)

N2 adsorption

SBET (m2/g)

VBJH (10− 3cm3/g)

Hysteresis area

Hysteresis indices

H-1

2.35

2.68

12.09

6.35

0.2139

0.0516

H-2

4.07

4.06

18.06

6.10

0.0949

0.0164

H-3

4.16

2.94

14.92

3.92

0.0986

0.0214

H-4

2.38

2.41

10.12

4.43

0.1536

0.0469

L-1

2.33

3.29

13.06

10.64

0.8755

0.1737

L-2

3.56

3.88

18.89

14.23

1.3850

0.1875

L-3

4.41

4.28

19.76

14.36

1.3231

0.1705

L-4

4.07

5.29

18.61

12.84

0.9623

0.1335

L-5

0.18

3.34

7.23

11.03

0.6340

0.1941

N-1

2.50

4.77

21.06

16.26

0.7389

0.0981

N-2

4.25

6.77

21.30

18.04

1.2250

0.1545

N-3

3.61

4.58

18.36

15.79

1.0260

0.1506

N-4

4.93

6.94

17.60

16.08

0.9826

0.1470

N-5

2.62

4.34

15.12

14.11

1.0894

0.1881

Y-1

1.90

3.27

19.29

31.59

0.4419

0.0573

Y-2

2.37

3.13

22.09

34.01

0.4742

0.0543

Y-3

2.76

4.28

21.86

33.99

0.1305

0.0151

Y-4

4.20

4.51

27.23

33.45

0.6750

0.0653

Y-5

2.30

2.96

21.77

26.87

0.0012

0.0001

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