In the context of the energy transition, addressing the coverage of the energy base load remains a key challenge. The provision of wind or solar energy, both in terms of time and location, falls short of covering the base load demand for electrical or thermal energy supply. Given these challenges, the exploration and development of deep geothermal resources emerge as a particularly viable solution throughout Europe.

To ensure the widespread establishment of deep geothermal energy, achieving economic viability in establishing communication between the surface site and subsurface targets is indispensable. Thus, specialized drilling tools and processes tailored to the distinct challenges of deep geothermal drilling—including high pressures, elevated temperatures and resistant formation properties—are crucial. Furthermore, a comprehensive understanding of rock properties considering the influence of changing external factors such as temperature, confining pressure, and hydrostatic pressure with depth, contributes to the optimization of tool design and performance in these rarely drilled formations.

The proposed refinement within this project aims to investigate the effect of external factors on formation properties and rock destruction mechanisms. It consists of effectively modelling the work of the various cutting elements of any drilling bit, whatever is the cutting mechanism, in order to predict its drilling performance. Its focus seeks to synergize the benefits of percussive and shearing drilling techniques with the overarching goal of enhancing tool longevity, achieving improved rates of penetration in formations of varying degrees of hardness, and efficiently removing rock debris from the bottom hole.