Validation of physical and mechanical rock properties for geomechanical analysis

A method for validating earth formation data for input into a geophysical model, the method comprising:

• determining a lithology of the earth formation;
• receiving measurement data for a plurality of different properties of the earth formation rock using a processor;
• plotting data points for a first property versus a second property in a cross-plot, the data points for the first property and the second property being selected from the received measurement data using the processor;
• plotting an expected correlation between the first property and the second property on the cross-plot for rock of the determined lithology using the processor;
• establishing an acceptance criterion for validating the data points related to the first property and the second property with respect to the expected correlation;
• determining which of the plotted data points related to the first property and the second property fall within the acceptance criterion to provide validated data points related to the first property and the second property using the processor;
• and
• inputting the validated data points related to the first property and the second property into the geomechanical model using the processor.