Skip to main content
Geothermal Energy

Science – Society – Technology

Table 3 Summary statistics of DFN model realisations. Numbers reported as mean ± 1 standard deviation

From: Modelling of flow through naturally fractured geothermal reservoirs, Taupō Volcanic Zone, New Zealand

Model

Number of fractures or intersections

Flows (kg.s−1)

Anisotropy

Model

Mean P10 (m−1)

Original

Backbone

Intersections

Pressure gradient parallel to mean fracture direction

Pressure gradient perpendicular to mean fracture direction

Flow parallel to MFD (Fig. 5A)

Flow perpendicular to MFD (Fig. 5C)

Flow perpendicular to MFD (Fig. 5A)

Flow parallel to MFD

A

0.6

3.6e + 05 ± 1.1e + 04

1.1e + 05 ± 6.5e + 03

2.7e + 05 ± 1.9e + 04

23.8 ± 1.8

0.011 ± 0.49

1.81 ± 0.21

0.0026 ± 0.19

13.31 ± 1.29

B

0.7

4.2e + 05 ± 1.2e + 04

1.5e + 05 ± 8.0e + 03

4.0e + 05 ± 2.6e + 04

31 ± 2.1

0.009 ± 0.57

2.41 ± 0.24

0.0026 ± 0.22

12.95 ± 1.11

C1

0.73

4.3e + 05 ± 1.2e + 04

1.6e + 05 ± 8.0e + 03

4.6e + 05 ± 2.7e + 04

31.5 ± 2.1

0.013 ± 0.55

2.42 ± 0.24

0.0064 ± 0.22

13.13 ± 1.13

C2

0.76

4.8e + 05 ± 1.2e + 04

2.1e + 05 ± 9.1e + 03

6.8e + 05 ± 3.6e + 04

31.9 ± 2.3

0.007 ± 0.54

2.34 ± 0.24

− 0.0029 ± 0.22

13.7 ± 1.24

D

0.7

4.2e + 05 ± 1.1e + 04

1.5e + 05 ± 7.9e + 03

4.0e + 05 ± 2.6e + 04

30.8 ± 2.2

0 ± 0.56

2.4 ± 0.24

0.0092 ± 0.21

12.92 ± 1.1

E

0.8

4.7e + 05 ± 1.2e + 04

1.9e + 05 ± 8.7e + 03

5.3e + 05 ± 3.0e + 04

39.3 ± 2

0.005 ± 0.57

2.82 ± 0.24

0.0094 ± 0.23

14 ± 0.99

F

0.5

3.0e + 05 ± 9.9e + 03

7.5e + 04 ± 5.2e + 03

1.7e + 05 ± 1.4e + 04

15.6 ± 1.6

0.006 ± 0.42

1.23 ± 0.18

0.0047 ± 0.16

12.77 ± 1.55

G

0.4

2.4e + 05 ± 8.8e + 03

4.6e + 04 ± 3.8e + 03

1.0e + 05 ± 9.5e + 03

8.1 ± 1.2

0.018 ± 0.33

0.7 ± 0.14

0.0075 ± 0.13

11.84 ± 1.99

H

0.3

1.8e + 05 ± 7.6e + 03

2.3e + 04 ± 2.9e + 03

4.6e + 04 ± 6.3e + 03

2.4 ± 0.7

0.001 ± 0.23

0.25 ± 0.09

0.0007 ± 0.09

10.25 ± 3.36

I

0.2

1.2e + 05 ± 5.5e + 03

2.1e + 03 ± 1.1e + 03

3.9e + 03 ± 2.1e + 03

0.1 ± 0.1

0 ± 0.02

0.01 ± 0.02

0.0001 ± 0.02

5.57 ± 2.13

  1. 1000 realisations per model, except for model I where 5000 realisations were run. The permeability anisotropy in the final column is the ratio of the along flow to the across flow.
Back to article page