RockPhysicsModeller

RockPhysicsModeller is an open-source software tool designed for the analysis and modeling of rock physics properties. Developed primarily for use in geoscience, particularly in petroleum exploration and reservoir characterization, it provides a platform for simulating how physical properties of rocks—such as porosity, permeability, and elastic moduli—respond to variations in composition, stress, and fluid saturation. The software is built on Python and leverages libraries like NumPy and SciPy to perform numerical computations efficiently.

The tool is particularly useful for researchers and industry professionals working with seismic data, core analysis, and well-log interpretation. It allows users to model relationships between seismic attributes (such as P-wave and S-wave velocities) and rock properties, aiding in the prediction of reservoir quality and fluid content. RockPhysicsModeller supports various empirical and theoretical rock physics models, including Gassmann’s fluid substitution, effective medium theories (e.g., Hashin-Shtrikman bounds), and empirical relationships like the Castagna velocity-porosity trends.

Key features of RockPhysicsModeller include its modular design, allowing users to customize workflows, and its ability to handle large datasets through vectorized operations. The software also includes visualization tools for plotting results, facilitating the interpretation of complex rock physics relationships. While primarily intended for academic and industrial applications, it has been used in educational settings to teach rock physics principles.

RockPhysicsModeller is distributed under an open-source license, encouraging collaboration and further development by the community. It is often integrated with other geoscience tools, such as Petrel or Python-based workflows, to enhance reservoir modeling workflows. The project is actively maintained, with updates addressing new models and improving computational performance.