Some Recent Development in the Swedish Hot-Dry-Rock Project
- Key words
- Exploration; Geochemistry; Geology; Hot Rock; Granite; Lineament Analysis; Chemistry; Fractures; Water Rock Reaction; Microseismic; Seismic; P Waves; S Waves
- Location
- Sweden
- Conference
- Geothermal Resources Council Transactions
- Year
- 1987
- Session
- Exploration; Hydrogeology; HDR/EGS; Geological surveys; Micr
- Language
- English
Abstract
This paper reports from the ongoing hot-dry-rock project in Western Sweden. An intrusive, granitic rock mass is penetrated to 500 m depth by drillholes without steel casings. The zone between the drillholes at depth is stimulated by means of high-pressure injection of water and high-viscous gels in the first drillhole. The stimulation process is monitored by microseismic detection technique. The second hole is drilled on basis of this information to intersect the developed fracture zone, to assure hydraulic contact between the drillholes. This paper reports on geological, rock mechanical and geohydrological data from the experiments, as well as on stimulation results achieved.
Copyright 1987, Geothermal Resources Council. Readers who download papers from this site should honour the copyright of the original authors, and may not copy or distribute the work further without the permission of the original publisher.