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Geothermal Energy

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Table 2 Summary of models and input linear fracture densities; P10 = 0.6 m−1 in sheet-like andesites, P10 = 0.8 m−1 in ignimbrites, P10 = 1.7 m−1 in rhyolite lavas and breccia

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

Model

P10 lower sub-domain

P10 upper sub-domain

P10 rhyolite lava and lava size

Continuum models

Fluid particle tracing

A

0.6

0.6

–

Yes

Yes

B

0.6

0.8

–

Yes

 

C1

0.6

0.8

1.7 (0.25 km × 0.1 km)

  

C2

0.6

0.8

1.7 (0.5 km × 0.25 km)

Yes

 

D

0.8

0.6

–

Yes

 

E

0.8

0.8

–

  

F

0.5

0.5

–

  

G

0.4

0.4

–

  

H

0.3

0.3

–

  

I

0.2

0.2

–

  
  1. P10 is the same in upper and lower sub-domains in Models A, E–I. The dimensions of all models are 1 km × 1 km. Flows calculated for all models; continuum models and particle tracing conducted only for models labelled “Yes”.
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