| Title | BDFGeotherm: the Database of Geothermal Fluids in Switzerland |
|---|---|
| Authors | Romain Sonney and François-D. Vuataz |
| Year | 2007 |
| Conference | European Geothermal Conference |
| Keywords | Database, BDFGeotherm, geothermal fluids, Switzerland, geothermal potential, geothermal parameters, thermal springs, deep boreholes, ACCESS |
| Abstract | The motivation to build BDFGeotherm database was to put at the disposal of the geothermal community a comprehensive set of data on the deep fluids of Switzerland and of some neighbouring areas. Researchers, engineers and all persons wanting to know the type and properties of geothermal fluids existing in a given area or underground system can find in BDFGeotherm a wealth of information which are generally widely dispersed and often difficult to reach. The BDFGeotherm database has been built under Microsoft ACCESS code and consists of nine tables connected with a primary key: the field ?Code?. A selection of parameters has been chosen from the following fields: general and geographical description, geology, hydrogeology, hydraulics, hydrochemistry and isotopes and finally geothermal parameters. Data implemented in BDFGeotherm are in numerical or in text format. Moreover, in the field ?Lithological log?, one can visualize and save bitmap images containing lithological logs of boreholes. A total of 185 thermal springs or deep boreholes from 71 geothermal sites are implemented in BDFGeotherm. Among the 56 Swiss sites, a large majority of them are located in the northern part of the Jura range and in the upper Rhone valley. Some sites, in Germany (6), France (3) and Italy (6), were selected for the following reasons: located near Swiss hot springs or deep boreholes, having similar geological features or representing a significant geothermal potential. Many types of queries could be realised, using any fields of the database and the results can be put into tables and printed or exported and saved in other files. |