Deep Geological Repository: Safe Underground Disposal of Radioactive Waste

14 August 2021

Nuclear processes are routinely used in the fields of energy, industry, medicine, and research, however these activities create a by-product in the form of radioactive nuclear waste. Since the waste generated is harmful to life and the environment, it needs to be managed safely for the long-term (~200,000 years). A deep geological repository is internationally recognised as the safest long-term solution for the disposal of this waste.

Since 2019, AdTerra Energy has been working closely with Nagra (the Swiss National Cooperative for the Disposal of Radioactive Waste) to conduct geoscientific investigations in both shallow and deep boreholes to produce detailed analyses of the underground geological environment. These analyses are essential for ensuring the safety of a repository and allow comparisons of potential siting regions to ensure that the most suitable site is selected. Current activities include:

  • Planning and management of petrophysical logging, microhydraulic fracturing, and vertical seismic profiling (VSP) campaigns.
  • Wellsite supervision to ensure operations are carried out safely, efficiently, and in accordance with Swiss regulations
  • Data management, quality assurance (QA), and quality control (QC)
  • Advanced deterministic and stochastic petrophysical log evaluation
  • Interpretation of MHF for full stress tensor determination, calibration & validation of 3D geomechanical models
  • VSP processing and interpretation for the enhancement and correlation of 3D seismic surveys

For more information, please refer to the open access reports on each borehole below:



See also

Geothermal: High-resolution 3D modelling

In the global search for renewable and low-emission energies, there is a strong emphasis on geothermal potential and the accurate characterization of known resources.

Data Base Management

Multi-disciplinary projects involve a large amount of data of various nature that must be securely stored, quality checked and carefully organized to ensure confidentiality and high-quality analyses.

Oil and Gas : High Resolution Modelling

Several challenges are faced in the development of a reservoir. The reservoir simulation model must accurately predict the past, current, and future performance of the field.