A Cross-Simulator Comparison of Dual-Porosity Approaches for Predicting Temperature Decline

Abstract

Many numerical reservoir simulators have been used in the geothermal industry, with their valid performance confirmed using publicly available s. These simulators will have nearly identical performance for single-porosity models and parameters are easily compared between different simulators. When implementing dual-porosity formulations, the choice between MINC, dual-porosity, and dual-permeability leads a divergence in the comparability of these parameters. Through history matching and analog studies, the modeling community has converged on a range of values for several parameters that improve forecasting with realistic predictions of thermal breakthrough. This paper compares three simulators and their available dual-porosity parameters to identify a conversion approach between the softwares. A field history example from Brady's Hot Springs is presented with the corresponding applicable parameters for several dual-porosity approaches.