| Title | How the Use of Tem Changed the Resistivity Model of Oxarfjordur Temperature Field from an Earlier DC Survey - a Case History |
|---|---|
| Authors | Ragna Karlsdottir and Olafur G Flovenz |
| Year | 2010 |
| Conference | World Geothermal Congress |
| Keywords | DC survey, TEM survey, Resistivity model |
| Abstract | A resistivity survey in Oxarfjordur temperature field in north Iceland, performed by the use of the Schlumberger (DC) method showed a resistivity structure interpreted as a high temperature reservoir with temperatures exceeding 240°C. Drilling into the field however did not confirm an active high temperature field nor temperatures exceeding 190 °C. A TEM (Transient Electro Magnetic) survey explained the structure with a better resolution at depth, as a geothermal fracture dominated field within sedimentary surroundings at temperatures as high as 190°C |