MODELING HEAT EXTRACTION FROM A FRACTURE IN HOT DRY ROCK USING AN INTEGRAL EQUATION METHOD
- Key words
- hot dry rock, numerical simulation
- Conference
- Stanford Geothermal Workshop
- Year
- 2001
- Session
- hot dry rock
- Language
- English
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Abstract
In the study of heat extraction by circulating water in a fracture embedded in geothermal reservoir, the heat conduction in the reservoir is typically assumed to be one-dimensional and perpendicular to the fracture. In this paper we demonstrate that by an integral equation formulation utilizing Green's function, the two-dimensional heat flow in the reservoir can be modeled. In the resulting numerical solution system, the discretization of reservoir geometry is entirely eliminated, leading to a much more efficient scheme. The two-dimensional heat conduction effect as compared to its one-dimensional simpli?cation is studied.
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