This is a python software package designed to help geoscientists perform quick formation evaluation workflow by estimating reservoir petrophysical parameters such as:
Volume of Shale using various methods like Clavier, Stieber and Larionov methods
Porosity - Effective and Total porosities using the Density and Wyllie’s sonic methods.
Water Saturation - using both archie and simmandoux methods
Permeability
In addition to estimating these parameters, log plots are automatically displayed for proper interpretation. Also a pay summary result/dataframe is produced to help quantify the over-all quality of the reservoirs. Cutoff such as the porosity, shale volume and water saturation are applied to flag pay regions. The pay summary include:
net, gross and not net thicknesses
% net-to-gross
average volume of shale
average porosity
bulk volume of water
water saturation.
Interestingly, the parameters are computed and displayed only for the zones of interest picked. Plots such as neutron-density and pickett are available for reservoir assessment. Geolocations of the wells can also be visualised.
Installation
You can install the package into your local machine using the pip command:
pip install petrolib
Functionalities
The package is designed to handle:
Loading of well data
Processing of well log data
Statistical analysis such as log frequencies and correlation
Well log visualization
Plot well locations on an actual map
Facilitates the loading of well tops.
Plot log curves along with zonation tracks
Neutron-density cross plot
Pickett Plot