WellRadPy

WellRadPy ("Well Radius Python") is a Python package for calculating the radius of influence and radius of investigation of pumping wells. These quantities frequently need to be estimated in well hydraulics and aquifer testing (also called well testing in petroleum engineering). In particular, calculating the radius of investigation is critical for the design and the interpretation of pumping tests. This package implements solutions for both drawdown and recovery phases of pumping tests.

Note that radius of influence and radius of investigation are different concepts. Furthermore, there are various ways by which each radius may be precisely defined. This package implements most definitions.

References

• Bresciani, E., Shandilya, R.N., Kang, P.K., Lee, S., 2020. Well radius of influence and radius of investigation: What exactly are they and how to estimate them? Journal of Hydrology, 583: 124646. https://doi.org/10.1016/j.jhydrol.2020.124646.

• Bresciani, E., Shandilya, R.N., Kang, P.K., Lee, S., 2020. Evolution of the radius of investigation during recovery tests. Journal of Hydrology, 590: 125346. https://doi.org/10.1016/j.jhydrol.2020.125346.

Usage

WellRadPy is simple and its use is straightforward. The /examples directory in the GitHub repository contains scripts where the functions for calculating radius of influence and radius of investigation are exemplified.

Help can also be obtained by typing help(function_path) in the Python console.

Installation

For simple use

1. From the command line, type pip install wellradpy. This will download the latest release of the package from the PyPI repository and install it.

For development

1. Clone (or download) the sources from the GitHub repository.
2. From the project directory, type pip install -e .. This will install the current directory, so that you can both modify the package and use it at the same time.

Dependencies

WellRadPy depends on the Python packages NumPy and SciPy (>= 1.2.0). These will be automatically installed with any of the above installation methods.

Authors

• Etienne Bresciani (etiennebresciani)

License

This project is licensed under the MIT License – see the LICENSE.txt file for details.

Acknowledgements

• Korea Ministry of Science and ICT through the Korea Research Fellowship program of the National Research Foundation of Korea (2016H1D3A1908042)
• Korea Institute of Science and Technology (KIST) through the Future Research Program (2E29660, 2E30510)
• Korea Ministry of Environment (MOE) through the Subsurface Environment Management (SEM) Project of the Korea Environment Industry & Technology Institute (KEITI) (2018002440006)