Abstract

Successful development of a geothermal system requires reliable information on its permeability and fluid pathways, which can be fault-controlled and/or influenced by the lateral extent of its reservoir rocks. Utilisation of implicit 3-D visualisation and modelling software allows complex geological and structural framework models to be established that support exploration, and help constrain borehole-targeting with reduced drilling risk and cost. The ability to model geology in a 3-D interface has provided new insights regarding the geological framework, controls on deep-seated permeability, volcanic and basement stratigraphic correlations, and geothermal system evolution in a case study from Kawerau, New Zealand.

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