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→Crossplots
===Crossplots===
===Crossplots===
<gallery mode=packed heights=200px widths=200px>
<gallery mode=packed heights=300px widths=300px>
log-analysis-applications_fig5.png|{{figure number|5}}A Pickett plot allow users to interactively draw a line intersecting water wet points (''S''<sub>w</sub> = 100%). This line identifies the cementation exponent (''m'') and the product of a × ''R''<sub>''w''</sub> (empirical constant × formation water resistivity) and relates water saturation (''S''<sub>w</sub>) to porosity and true resistivity.
log-analysis-applications_fig5.png|{{figure number|5}}A Pickett plot allow users to interactively draw a line intersecting water wet points (''S''<sub>w</sub> = 100%). This line identifies the cementation exponent (''m'') and the product of a × ''R''<sub>''w''</sub> (empirical constant × formation water resistivity) and relates water saturation (''S''<sub>w</sub>) to porosity and true resistivity.
log-analysis-applications_fig6.png|{{figure number|6}}Dual plot contains crosspiot (featuring data isolator polygon) and traceplot. User interactively draws polygon on the screen, which identifies the enclosed data in the database. Corresponding depths are immediately marked on the traceplot, in this case with tic marks.
log-analysis-applications_fig6.png|{{figure number|6}}Dual plot contains crosspiot (featuring data isolator polygon) and traceplot. User interactively draws polygon on the screen, which identifies the enclosed data in the database. Corresponding depths are immediately marked on the traceplot, in this case with tic marks.