| Title | A THREE-DIMENSIONAL SOLUTION FOR HEAT EXTRACTION FROM A FRACTURE IN HOT DRY ROCK USING THE BOUNDARY ELEMENT METHOD |
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| Authors | A. Ghassemi., A. H.-D. Cheng., S. Tarasov |
| Year | 2002 |
| Conference | Stanford Geothermal Workshop |
| Keywords | fractures |
| Abstract | Heat extraction from a fracture in a geothermal reservoir is typically modeled based on the assumption that heat conduction is one-dimensional and perpendicular to the fracture. In this paper an integral equation formulation is used to model the three-dimensional heat ?ow in the reservoir. This method results in a numerical procedure in which the discretization of the reservoir geometry is entirely eliminated, leading to a much more efficient scheme. In addition to providing the temperature distribution in the reservoir, the three-dimensional boundary integral equation formulation provides an e.cient means for calculating the induced thermal stresses on the facture surface and in the reservoir. |