Hot-dry-rock systems

Durst, P. Vuataz, F. D. 2001. Geochemical modeling of the Soultz-sous-Forets Hot Dry Rock system, brine rock interactions in a deep hot fractured granite reservoir. 26th Workshop on Geothermal Reservoir Engineering, Stanford University, Stanford, California, SGP-TR-168. 

A geothermal power plant with a hot dry rock system constructed in Japan is evaluated herein. The capacity of the power plant is assumed to be 280MW and hot dry rocks (300Ae) at a depth of 4km is used to generate steam. The plant area is calculated to be 1.4km. ... 

This geothermal system is now regarded has a heat mine, from which the heat is recovered by means of an artificial water flow. The exploitation strategy is therefore progressively moving from a strategy typical of hydrothermal systems to one typical of hot-dry-rock (HDR) systems. An HDR system is any system where injection is necessary to extract the heat at a commercial rate for a prolonged period (Baldeyrou-Bailly et al, 2004). 

Tezuka, K. and Niitsuma, H. (1997). Integrated interpretation of microseismic clusters and fracture system in a hot dry rock artificial reservoir. Expanded Abstr., SEG 67 Ann. Intern. Meeting. 

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