Hydraulic fracturing and geothermal energy

First Japan-United States Joint Seminar on Hydraulic Fracturing and Geothermal Energy, Tokyo, Japan, November 2–5, 1982.- Special Presentations.- Geothermal Energy Development in Japan (General Lecture).- Thermally Induced Cracks and Heat Extraction from Hot Dry Rocks (General Lecture).- Hot Dry Rock Reservoir Development and Testing in the USA.- The Falkenberg Geothermal Frac-Project: Concepts and Experimental Results.- Shallow Depth Experimentation on the Concept of Energy Extraction from Deep Hot Dry Rocks.- Topic 1: Subsurface Structure and Hydraulic Fracturing.- Hydraulic Fracturing Experiment at Nigorikawa and Fracture Mechanics Evaluation.- Breakdown Pressure Prediction in Hydraulic Fracturing at the Nigorikawa Geothermal Field.- The Influence of Subsurface Conditions on Hydraulically Induced Fractures in Deep Rocks.- Evaluation of Artificial Fracture Volume Based on Vented Water at Yakedake Field.- Propagation of Hydraulic Fracture and Its Conductivity in Layered Media.- Hydraulic Fracturing in Geological Processes: A Review.- Topic 2: Rock Mass Properties in the Presence of Pressurized Fluid at Elevated Temperatures.- A Method of Estimating Underground Temperature from a Solution of Iterative Least-Squares Interpretation of Schlumberger’s Resistivity Sounding Curves in Geothermal Fields.- Measurements of In-situ Stress, Fracture Distribution, Permeability, and Sonic Velocity.- Measurement of Tectonic Stress by Hydraulic Fracturing in Japan.- Rock Mass Behavior Coupled with Pressurized Water Flowing Through the Fracture.- An Assessment of the Factors Affecting Hydraulic Fracture Containment in Layered Rock: Observations from a Mineback Experiment.- Theory and Application of Hydraulic Fracturing Technology.- Fracture Toughness Evaluation of Rocks in thePresence of Pressurized Water at Elevated Temperature.- Topic 3: Mapping of Subsurface Fractures.- Application of Seismic Inverse Methods to Mapping of Subsurface Fractures.- Detection of the Newly Formed Fracture Zone by the Seismological Method.- Strike-Dip Determination of Fractures in Drillcores from the Otake-Hatchobaru Geothermal Field.- Hydraulic Fracturing and Fracture Mapping at Yakedake Field.- In-situ AE Measurement of Hydraulic Fracturing at Geothermal Fields.- Topic 4: Simulation of Geothermal Reservoirs.- Experimental Studies on Heat Extraction from Fractured Geothermal Reservoirs.- Simulation of Transient Pressure Behavior in a Fractured Geothermal Reservoir.- Influence of Preexisting Discontinuities on the Hydraulic Fracturing Propagation Process.- Geothermal Reservoir Simulation for Water Dominant Fractured Reservoir.- Crack-Like Reservoir in Homogeneous and Inhomogeneous HDR.- Symposium on Fracture Mechanics Approach to Hydraulic Fracturing and Geothermal Energy, Sendai, Japan, November 8–9, 1982.- Applications of Rock Fracture Mechanics.- A Reservoir Created by Injection of Fluid on a Fault for the Extraction of Geothermal Heat.- Application of Laboratory Fracture Mechanics Data to Hydraulic Fracturing Field Tests.- Finite Element Treatment of Singularities for Thermally Induced Crack Growth in HDR.- Growth of Microcracks in Rocks, and Load-Induced Anisotropy.