Table 5 Pore–throat parameters.

From: Multiscale characterization of micro fracture connectivity and gas migration in volcanic reservoirs using µCT and hybrid learning segmentation

Parameter

CS1 Fractures

W21 Fracture

CS105 Fractures

DS9 Fractures

Total pore volume (µm3)

7.37

7.38

24.87

10.48

Total pore surface area (µm2)

171.36

352.35

2501.27

454.36

Average pore volume (µm3)

0.091

0.03

0.67

0.013

Average pore surface area (µm2)

2.12

1.43

67.6

0.58

Total throat volume (µm2)

12.70

5.42

3.24

9.46

Average throat volume (µm2)

0.067

0.012

0.048

0.0065

Total throat length (µm)

177.58

424.48

160.56

663.62

Average throat length (µm)

0.93

0.90

2.36

0.45

Average throat radius (µm)

0.13

0.064

0.11

0.052

Average pore radius (µm)

0.22

0.17

0.44

0.13

Number of pores

81

246

37

777

Number of throats

189

471

68

1463

Maximum coordinated number

18

12

9

11

Average coordinated number

4.7

3.82

3.68

3.77

  1. Note: CS1 denotes a rhyolitic crystal–lithic tuff; W21 denotes a dacitic crystal–lithic tuff; CS105 denotes a volcanic tuff; DS9 denotes a porphyritic andesite.
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