Deep drilling

Drilling work on deep well IDDP-2 in Reykjanes was completed on the 25th of January, 2017 at a depth of 4,650 m. The project was completed once a thin pipeline (thin drill string) had been installed in the well to a depth of 4,585 m. Cold water was then injected öldu vatni var síðan dælt niður undir botn í 5 mánuði og jafnframt frá yfirborði utan með pípunni. These measures were an attempt to increase permeability by allowing the well to heat up and cool down alternately. The aim was to increase the power of the well, beyond what was initially estimated at the completion of drilling and to assess the relationship between the well and the geothermal system utilised by the Reykjanes Power Plant. The pipeline was then removed at the beginning of 2017. The lowest pipes were significantly corroded as a result of contact with super-critical geothermal fluid and there was also unexpected damage to the casing above. These developments will not affect ongoing utilisation experiments. Preparation measures are underway to inject tracer liquid and to prepare well testing which is expected to begin at the end of 2018.