International Conference 4th Hot-Dry-Rock (HDR) ForumStrasbourg, France 1998

Draft Papers
Erscheinungsjahr 2002
ISBN: 978-3-510-95895-5
Verlag: E. Schweizerbart

Buch, Englisch, Band 1, 418 Seiten, Format (B × H): 210 mm x 300 mm, Gewicht: 1090 g

Reihe: Sonderhefte Reihe E - Geol. Jahrb.

This book includes about fifty papers presented in the technical sessions of the Forum. Technical papers were organized into 7 sessions concerning: current status of the HDR projects, resource and economics, geology, geochemistry, stress and rock thermal properties, microseismics, reservoir creation and assessment.

Autoren/Hrsg.

Baria, Roy

Baumgärtner, Jörg

Gérard, André

Jung, Reinhard

Fachgebiete

• Technische Wissenschaften Energietechnik | Elektrotechnik Geothermale Energie

Inhaltsverzeichnis

Contents
PREFACE 5

CURRENT STATUS OF THE HDR PROJECTS (SUMMARY PRESENTATIONS)
D. Duchane: The History of HDR Research and Development 7

N. Tenma, and S. Iwakiri: Program of the Preparatory Period for a Long-Term Circulation Test on the Hijiori HDR Project 19

K. Kitano, Y. Hori, K. Suzuki, and Y. Fujimitsu: Results of Underground Structure Exploration and Individual Flow Test of Multiple Reservoirs at Ogachi HDR Site in 1997 25

R. J. Hopkirk, and M. O. Häring: The Swiss Deep Mining Project 31

J. H. Sass, and A. R. Robertson-Trait: Potential for "Enhanced Geothermal Systems" in the Western United States 35

P. Chopra, and D. Wyborn: The Commercial Framework for the Planned HDR Project: Hunter Valley, Australia 43

G. Axelson, G. Sverrisdóttir, O. G. Flóvenz, F. Arnason, A. Arnason, and R. Bödvarsson: Thermal Energy Extraction by Reinjection from a Low-Temperature Geothermal System in N-Iceland 51

R. Baria, J. Baumgärtner, A. Gérard, R. Jung, and J. Garnish: European HDR Research Programme at Soultz-Sous-Foêts (France); 1987 - 1998 61

RESOURCES AND ECONOMICS

P.-H. Bourrelier: Future Steps for the Development of Large Engineered Heat Mining Systems 71

J. Dornstädter, O. Kappelmeyer, and M. Welter: The Geothermal Potential in the Upper Rhine Graben Valley 75

GEOLOGY

H. Tenzer, U. Schanze, and G. Homeier: Development and Characterization of a HDR Heat Exchanger at the HDR Test Site at Soultz-Sous-For?ts: Flow Logs, Joint System, and Hydraulic Active Fractures 83

A. Genter, Ch. Dezayes, S- Gentier, B. Ledesert, and J. Saussé: Conceptual Fracture Model at Soultz Based on Geological Data 93

J. Saussé, A. Genter, M. Lespinasse, and J. L. Leroy: Desription and Quantification of Vein Alterations: Paleopermeabilities in the Soultz-Sous- Forêts-Granite (Bas-Rhine, France) 103

C. Dezayes, T. Villemin, A. Genter, A. Pecher, and J. Angelier: Latent Fracturation and Microfissuration in the Granitic Geothermal Reservoir at Soultz-Sous-Forêts (France) 111

T. Villemin, L. Empereur-Mot, C. Dezayes, and A. Genter: 3-D Geometrical Simulation of a Rock Mass Fragmentation Based on Drillhole Data 119

S. Kitani, K. Tezuka, M. Yagi, and M. Miyairi: Geologic Structure in and Around Hijiori HDR Tets Site 125

GEOCHEMISTRY

E. Jacquot: Description of the Geothermal HDR Site of Soultz-Sous-Forêts (BasRhin, France) Based on Data Collected During Previous Stimulation and Circulation Experiments for a Modelling Purpose 135

K. Kiho, and T. Ohsumi: Geochemical Study at the Hijiori HDR Site, Japan - Chemical Dissolution by Water-Rock-Interaction 145

J.J. Drieux, A. Girou, I. Ignatiadis, and C. Roque: Electrochemical Study of a Scaling and Corrosion Sensor, Application to Geothermal Plants 153

STRESS, ROCK THERMAL PROPERTIES

T. Hettkamp, G. Klee, and F. Rummel: Stress Regime and Permeability at Soultz Derived From Laboratory and In-Situ Tests 165

Y. Oikawa, T. Yamaguchi, I. Matsunaga, and N. Tenma: Differential Strain Curve Analysis to Estimate the Stress State at the Soultz Field 173

S. Sasaki, and H. Kaida: Stress State at the Hijiori HDR Site Inferred From Focal Mechanism Data 179

K. Tezuka, and H. Niitsuma: Fracture System and Stress Estimated by Microseismic Clusters in Hijiori HDR Test Site 185

P. Talwani: In Situ Determination of Hydraulic Properties in a Shear Zone in Northwestern South Carolina 195

MICROSEISMICS

H. Kaieda, S. Sasaki, K. Suzuki, K. Ushijima, and K. Kitano: Ogachi Reservoir Evaluation by the AE and Electric Measurements 203

N. Soma, and H. Niitsuma: AE Reflection Method for the Estimation of Reservoir Structure Inside Deep Basement Rock 209

S.A. Shapiro, J.-J. Royer, and P. Audigane: Characterization of the Reservoir Permeability Using Fluid-Injection Induced Seismic Emission 219

RESERVOIR CREATION AND ASSESSMENT

J. Dornstädter, A. Fabricius, and J. Zaske: Long Term Circulation Experiment at the HDR-Site Soultz-Sous-Forêts, Hydraulic Impact on