TU Bergakademie Freiberg Paves the Way for 15-Kilometer Boreholes
The testing plant was installed on behalf of DEA to research next-generation drilling technologies. Such “ultra-extended-reach drillings” will have lengths of over 15 kilometers, and will be driven horizontally both into and through oil and gas deposits at depths of several thousand meters. The Institute of Drilling Engineering and Fluid Mining is now researching how the borehole casing pipe can be inserted and cemented into such boreholes to allow them to be stabilized over the longer term. To this end, the frictional effects in the borehole need to be investigated and researched in great detail. The conditions prevalent during the installation of the casing in the borehole can be reconstructed in a very realistic manner in the new testing facility, and the research results will be fed directly into the planning of future drilling projects.