The second well at the United Downs Deep Geothermal Power (UDDGP) project in Cornwall, England, was successfully completed at the end of June 2019. The well UD-2 has a final depth of 2,393 m MD / 2,214 m TVD. Having reached the Porthtowan Fault Zone, UD-2 will serve as the injection well. The production well UD-1 with a depth of over 5 km has already been completed in April earlier this year.

Preliminary results from drilling the two wells are promising in terms of encountered temperature (around 190 °C at the bottom of UD-1) and the occurence of natural fractures. To properly evaluate the fault structure and well condition and to assess how much geothermal energy can be harnessed from the system, a series of measurements and hydraulic tests will be carried out, likely taking place from August 2019 to March 2020. This will include further geophysical logging measurements and the collecting of sidewall cores.

With its expertise in geothermal reservoir modeling, GeoT is contributing to the UDDGP project through the framework of two research projects S4CE (Science 4 Clean Energy) and MEET (Multidisciplinary and multi-context demonstration of EGS exploration and Exploitation Techniques and potentials), which receive funding from the Horizon 2020 EU framework program for research and innovation.

More information and the latest news on these projects can be found here:

Second well at United Downs Deep Geothermal Power project successfully completed