EIT ISEB
Development and in-situ testing of an EIT drilling system
| Funding: | Federal Ministry for Economic Affairs and Energy |
| Funding code: | FKZ 0325788A |
| Partner: |
Institut für Bohrtechnik und Fluidbergbau (TU Bergakademie Freiberg), Bauer Maschinen GmbH, Thomas Werner Industrielle Elektronik e. Kfm., BitsZ engineering GmbH, ILEAG e.V., GeoThermal Engineering GmbH, Baker Hughes Company |
| Duration: | 12/2014 - 06/2018 |
| Contact: | Erik Anders |
Based on the developed EIT drill head, a drilling system was developed in the follow-up project, which provides an in-hole energy supply. The necessary energy is extracted from the circulating drilling fluid by a drill motor and converted into a DC voltage of several 10,000 V using a gear, a generator, a transformer and a rectifier. This serves as an input voltage for the impulse voltage generator, which generates a high impulse voltage of several 100,000 V. The rock is destroyed by these impulses and propulsion is generated in the borehole. The system is designed for water-based drilling fluids (WBM) for environmental reasons. The project ended with an in-situ test of the entire system to demonstrate the functionality of the EIT drilling system.
