Pe/Density Crossplot
INPUTS
Common densities
Sandstone: 2.65*-2.68
Limestone: 2.71
Dolomite: 2.78-2.87*
*more common value
Matrix bulk density =
Zone bulk density =
Fluid bulk density =
Fresh mud: 1
Salt mud: 1.1
Option: leave zone's bulk density blank
and enter Density log %porosity directly:
Enter Density %porosity =
Log Pe reading =
Fluid Pe =
(Fresh water=0.358, salt water=0.807)
SHALE CORR
No correction
Shale correction
Old rocks
Tertiary rocks
Gamma-ray in clean zone =
Gamma-ray in shale =
Gamma-ray in zone of interest =
Shale's bulk density =
Option: leave shale bulk density blank
and enter shale density %porosity directly:
Enter shale density %porosity =
RESULTS
Gamma-ray index =
Volume% of shale =
%Density log corr LS porosity =
Crossplot Results
Crossplot Pass #1:
%Ls =
%Do =
%Xpor =
Crossplot Pass #2:
%Ls =
%Ss =
%Xpor =
Crossplot Pass #3:
%Ss =
%Do =
%Xpor =