Table 1 Organic characteristics and composition of minerals of shale cores from different wells.

From: Impact of micromechanical properties of organic matter on the micro-mesopore structures of the over-mature shale in the Niutitang Formation

Samples

Depth/m

Clay (%)

Quartz (%)

Feldspar (%)

Carbonate (%)

Pyrite (%)

EqVRo (%)

TOC (wt.%)

FC1S1

2480.9

8.9

71.1

10.9

3.6

5.5

3.65

5.63

FC1S2

2500.5

10.2

72.2

8.1

4.1

5.4

3.72

5.41

TM1S1

1440.5

24.7

51.9

8.3

4.9

10.2

2.32

7.31

TM1S2

1450.8

23.5

49.8

9.1

5.1

12.5

2.40

5.46

TX1S1

1775.7

19.6

54.2

9.8

5.9

10.5

2.57

5.65

TX1S2

1780.2

16.5

55.3

7.7

5.0

15.5

2.85

5.44

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