| Title | Some Recent Development in the Swedish Hot-Dry-Rock Project |
|---|---|
| Authors | Eliasson, Thomas; Lindblom, Ulf E.; Slunga, Ragnar; Sundqvist, Ulf; Wallroth, Thomas |
| Year | 1987 |
| Conference | Geothermal Resources Council Transactions |
| Keywords | Exploration; Geochemistry; Geology; Hot Rock; Granite; Lineament Analysis; Chemistry; Fractures; Water Rock Reaction; Microseismic; Seismic; P Waves; S Waves |
| 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. |