During Q2/2026, RWTH further developed the GeoDT structural modelling workflow. The focus was on transforming heterogeneous geological data – including lithological units, topography, model boundaries and faults – into consistent voxel-based models suitable for numerical simulation. New methods for clipping, merging and boundary extraction improved the geometrical consistency and robustness of the resulting model outputs.

In parallel, the GemPy-based node editor was expanded into a modular visual workflow environment. Users can now combine, reuse and monitor individual modelling and processing steps, from importing geological data and generating structural models to preparing simulation-ready voxel grids and boundary meshes.

These developments make the modelling process more transparent, reproducible and accessible while strengthening the connection between geological modelling, simulation, visualization and data exchange. Future work will focus on further validation, automated consistency checks and integration with the project’s data-management infrastructure.This quarters main focus is to select and measure further core samples in order to gain more petrological data for the understanding of the subsurface. More core samples are taken and destructive measurements were carried out, i.e. XRD and EMP. Thin sections analyse allow to identify modal rock forming primary minerals as well as alteration. XRD enables to determine the type of mineral forming the rock and mineral abundances can be obtained via a quantitative interpretation. MSCL (Multi Sensor Core Logging) measurements were interpreted, thermal properties measured and reactive flow-through experiments will start soon. The first geomechanical experiments were conducted as well. Structural modelling is progressing by implementing further information from literature and obtained via the data generated from measurements.