Hydraulic Fracturing in the Bohus Granite, SW-Sweden: Tests for Heat Storage and Heat Extraction
- Key words
- Hot Dry Rock; Direct Use; Exploration; Sweden; Rixo; Hydraulic Fracturing; Frack Pressure; Home Heating; Residential Heating; Space Heating; Granite; Heat Storage
- Location
- Sweden
- Conference
- Geothermal Resources Council Transactions
- Year
- 1984
- Session
- HDR/EGS; Direct use; Exploration; Hydraulic fracturing; Spac
- Language
- English
Abstract
The HDR concept initially invested and tested at Los Alamos Scientific Laboratories has been considered as interesting for domestic heating in Sweden. The technique to produce large heat exchanger surfaces, by hydraulic fracturing, within the bedrock has in Sweden been tried at shallow depth, in order to create a subsurface energy storage. The initial tests have been very promising and it is concluded that it is possible to produce a competitive low cost energy storage in this way. Experiences form the hydraulic fracturing experiments at shallow depths (<50 m) will be considered when planning a program for the new test site at Fjallbacka, SW Sweden. Here fracturing experiments will be carried out in 500 meter boreholes.
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