Feedback on Pickett plot construction

this illustration is very helpful for undergraduate students for understanding how practically Pickett plot can be constructed . it is very illustrative I will use it at Damietta University, faculty of science geology department, EGYPT

Perhaps a mention the pickett plots are also a mean for finding Rw and M values in case there are not ones.

this page needs moor pictures and eqations

Show a real example of determining Sw by picket plot.

Very helpful.

very good....thank you for all

if possible give some illustration of respective value when put.for example when you are putting phi value is it environmentally corrected or just take the value from the log directly...thank you