| Title | Thermo-Hydro-Mechanical Modelling and Applications for Enhanced Geothermal Reservoirs |
|---|---|
| Authors | Watanabe, N.; Wang, W.; McDermott, C. I.; Zehner, B.; Kolditz, O. |
| Year | 2009 |
| Conference | Geothermal Resources Council Transactions |
| Keywords | THM; EGS; Reservoir Modeling |
| Abstract | We present the numerical model of thermo-hydro-mechanical (THM) coupled processes in a deep geothermal reservoir as well as its applications. The presented scheme is applicable for both an equivalent porous medium model and a discrete fracture model with multi dimensional elements. The finite element method (FEM) is used for the numerical analysis of fully coupled THM processes, including thermal water flow, advective-diffusive heat transport, and thermoelasticity. However, thermo-poroelastic response has been taken into account only for rock matrix in the present study. Application of the model is presented for a geothermal site at Urach Spa in Germany. The study also demonstrates an uncertainty analysis of THM processes and improvement of computational efficiency with parallel computing. |