A three-dimensional model of the Fenton Hill Hot Dry Rock reservoir has been developed. The model matches hydraulic, thermal, tracer, and water loss data during a 30-day flow test. Wellbores were placed in the finite element mesh at their relative positions. The data match to this flow test was used to make long-term simulations, and to predict the effect on reservoir performance of redrilling the damaged production wellbore. Increasing the length of producing interval by drilling was found to significantly improve reservoir power production and the temperature of produced fluids, while increasing the wellbore separation distance was found to result in only small improvements.

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