Hydrogeochemistry of the formation waters in the San Francisco field, UMV basin, Colombia - A multivariate statistical approach

HCA gives two main clusters divided in six water classes, while PCA explains near of 48.85% of the variance in the samples. CP1 explains 25.74% of the correlation between variables and factors revealing a high positive loading for electrical properties and cations. This factor may be related with the high dissolution of halite (marine environment) caused by the intensive flushing of the rock formation. CP2 explains the 13.15% of the data showing a good correlation between alkalinity parameters. CP3 explain the 10%, which establishes a good negative correlation for pH, and positive correlation between iron, zinc, and ammonia.