| Abstract |
Validated geothermal resource estimates are based on geological models that combine the geology from the surface to basement incorporating properties such as lithology, structure, fluids, compaction, porosity and permeability with thermal models consisting of heat flow, conductivity and thermal gradients. These models must extend beyond single point well analysis, and provide a balanced and geologically reasonable estimate of the size, structure, accessibility and maturity of a subsurface thermal system. To achieve a geologically reasonable model, all available geological and geophysical data must be considered. However, data sets and measurements must be analysed, interpreted and weighted in a manner that reduces error for thermal models. This paper focuses on building validated geothermal resource evaluations from geological and geophysical interpretations for Hot Sedimentary Aquifer (HSA) and Enhanced Geothermal Systems (EGS). This paper also focuses on limitations of some data sets, and this can be realized when modeling. |