Modelling an EGS system at the Ośno IG-2 well
Damian Janiga (ORCID 0000-0002-3780-776X) and Paweł Wojnarowski (ORCID 0000-0002-0188-9484), both from the Faculty of Drilling, Oil and Gas at AGH University of Krakow, published a dataset of fracturing simulations for the Ośno IG-2 well. The release was issued on 28 September 2026.
What the dataset holds
According to the dataset description, it contains fracture grids exported from GOHFER, a planar three-dimensional simulator of hydraulic fracturing. They cover nine scenarios of stimulation for a conceptual enhanced geothermal system (EGS). The target is the Lower Permian volcanic interval of the Autunian age in the Ośno IG-2 well. The modelled interval spans 4100 to 4350 metres below sea level.
Inside each file the fracture grid nodes are listed with their coordinates, the width of the hydraulically open fracture after pumping ends, and the fracture permeability.
Nine scenarios
The scenarios are built from combinations of three well trajectories, that is, sidetracks of Ośno IG-2, and three treatment variants. The variants are water at a volume of 5000 m³, water at 7000 m³, and supercritical carbon dioxide at a volume of 5000 m³.
Funding
The dataset comes out of the Polish-Norwegian project "CO2-Enhanced Geothermal Systems for Climate Neutral Energy Supply", known as EnerGizerS. Its number is NOR/POLNOR/EnerGizerS/0036/2019, and it is financed by the National Centre for Research and Development. An AGH statutory grant, number 16.16.190.779, also supported the work.
What it means in practice
Ośno IG-2 is a well that AGH researchers use as a starting point for modelling an EGS system. The results are simulations rather than measurements taken from the borehole. Replacing water with carbon dioxide to fracture hot dry rock is a research direction that links geothermal energy with CO2 management.