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Cutoffs sliders
Type or select a value using the sliders.
filter
Move to adjust smoothing for Vsh, Phi, SW.
litho modulation 
litho left value litho right value
Select the curve for the lithology pattern (typically Vsh) and then type start and end cutoff values.
clean rock value
Type the value below which appears non-shaly rock.
shale value
Type the value above which appears pure shale.
shale line using mode
Select either a constant or floating line.
porosity estimation method
Select either a sonic or density log.
saturation estimation method
Select from the following:
Archie For most areas.
Modified Simandoux For shaly areas.
Caliper Cutoff
Type the value above which to ignore caliper readings to correct for bad hole.
Rw, ohmm
Type the resistivity factor.
shale neutr. Phi,% shale density Phi,
% shale sonic Phi, %
Type the neutron porosity, density, and shale sonic porosity factor.
matrix DT, us/m
Type the matrix DT for sonic logs.
fluid dens., kg./m3
Type the fluid density.
shale resistivity using mode
Select either a constant or floating line.
compaction factor
Type the compaction factor if working with unconsolidated
rocks.