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Characterization of fluid transport properties of the Hot Dry Rock reservoir Soultz-2000 using induced microseismicity
Hydraulic stimulation is a procedure for increasing the permeability of a reservoir. At the geothermal site of Soultz, France, such experiments have been carried out since 1993 at different depths. During the Soultz-2000 hydraulic stimulation, about 7200 seismic events were located using a borehole and free surface seismic network. We analyse the spatio-temporal distribution and density of the events to estimate the large-scale permeability of the medium. We assume that the main triggering mechanism is a pore-pressure diffusion process. Based on this idea, we apply different, already developed, methods for the Soultz-2000 hydraulic stimulation. We obtain two independent scalar permeability estimations, a permeability tensor and a heterogeneous reconstruction of the hydraulic diffusivity. The results agree very well with independent in situ tests.
Characterization of fluid transport properties of the Hot Dry Rock reservoir Soultz-2000 using induced microseismicity
Hydraulic stimulation is a procedure for increasing the permeability of a reservoir. At the geothermal site of Soultz, France, such experiments have been carried out since 1993 at different depths. During the Soultz-2000 hydraulic stimulation, about 7200 seismic events were located using a borehole and free surface seismic network. We analyse the spatio-temporal distribution and density of the events to estimate the large-scale permeability of the medium. We assume that the main triggering mechanism is a pore-pressure diffusion process. Based on this idea, we apply different, already developed, methods for the Soultz-2000 hydraulic stimulation. We obtain two independent scalar permeability estimations, a permeability tensor and a heterogeneous reconstruction of the hydraulic diffusivity. The results agree very well with independent in situ tests.
Characterization of fluid transport properties of the Hot Dry Rock reservoir Soultz-2000 using induced microseismicity
Characterization of fluid transport properties of the HDR reservoir Soultz-2000
Nicolas Delépine (author) / Nicolas Cuenot (author) / Elmar Rothert (author) / Miltiadis Parotidis (author) / Susanne Rentsch (author) / Serge A Shapiro (author)
Journal of Geophysics and Engineering ; 1 ; 77-83
2004-03-01
7 pages
Article (Journal)
Electronic Resource
English
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