INTRODUCING GEOWATT AG Geothermal Energy utilization Engineering Hydrogeology Numerics Resource Evaluation Generic studies High- and Low-Enthalpy Systems.

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Presentation transcript:

INTRODUCING GEOWATT AG Geothermal Energy utilization Engineering Hydrogeology Numerics Resource Evaluation Generic studies High- and Low-Enthalpy Systems Courses at University and Engineering Schools Dimensioning Heatng/Cooling (BHE-Felder) Reservoir Engineering Measurements Tunneling: Inflow sceanario Flow system Coupled 3D-FE calculations Data bank Specific simulation tools

INTRODUCING GEOWATT AG BHE Engineering Expl. Grand Hotel Dolder in Zürich 1 GWh/yr heating and 1 GWh/yr cooling using 81 BHE of totally 10‘000 m length

INTRODUCING GEOWATT AG Hydraulic & Tunnelling Expl. Koralm-Tunnel water inflow to tunnel change of mountain water table Tunnel Western model area Eastern model area Relevant faults along the tunnel Water inflow into the tunnel Cut through west model ORION WinFra

INTRODUCING GEOWATT AG Reservoir Engineering pT-Simulator HEX-B Bsp. Europ. EGS Project Soultz-sous-Forêts, France Stimulation GPK3, 2003 Bohrlochköpfe GPK2/GPK3 Berechnung des Temp./Druck-Profils mit HEX-B ca. 10 Tage p(z,t) tmp(z,t) Flow Exit/Entry points Q [l/s] HEX-B

INTRODUCING GEOWATT AG Reservoir Engineering Stimulations-Code HEX-S Bsp. EGS Project Coso, USA Hydromechanisch gekoppelter Code Deterministische Strukturen (UBI) Stochastische Strukturen (  UBI) HEX-S Pressure distribution & seismic events in reservoir after 24 hrs injektion Wellhead-Pressure

INTRODUCING GEOWATT AG Resource Evaluation Construction of 3D geological model Discretization in a 3D representation model Integration of petrophysical data Numerical simulationTemperature data analysis Data collection GeoProd

Utilization fract. aquifer Example: Doublet plant Riehen, CH Injection: Production: Riehen1Riehen2 network of fracture zones with 100 m spacing hydraulic conductivity 10 5 times higher than matrix FRACTure

Analysis of fractured data Example: Coso stimulation prediction Analysis of fracture characteristics of flowing zones Hydro-mechanical simulations Deterministic Stochastic fracture HEX-S

ENGINE Contributions Contributions foreseen in –WP4: Drilling, stimulation and reservoir assessment –WP6: Expertise on investigation of Unconventional Geothermal Systems and Enhanced Geothermal Systems –WP9: Risk evaluation for the development of geothermal energy

Workshop "Stimulation of Reservoir and Induced Microseismicity" 29. June – 30. June 2006 Kartause Ittingen, Warth, Switzerland 1. July 2006:Excursion "Grimsel Test Site" Registration deadline: 25. March 2006