Density Log Porosity
INPUTS Common densities
Sandstone: 2.65*-2.68
Limestone: 2.71
Dolomite: 2.78-2.87*
Fresh mud: 1
Salt mud: 1.1
*more common value
Depth =
Zone density =
Matrix density =
Fluid density =
Shale density =
Gamma-ray in clean zone =
Gamma-ray in shale =
Gamma-ray in zone of interest =
RESULTS Gamma-ray index =
Volume% of shale =
%Density log porosity =


When you finish your calculations,
select the recorded data, copy it,
and then paste it into a spreadsheet
as comma-delimited values to save it.