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Formation water
resistivity (Rw)
(I)
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Formation Porosity(�)
(II)
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Water and Oil
Saturation
(III)
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Enter formation temperature
in Fahrenhayt
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Enter Formation water salinity
in ppm
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SPin mV (from log):
Rmf (log heading):
Rmf Temp(log heading):
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Select Formation:
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Select Formation
Select Formation Cleanness
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Enter formation density from Density Log
in g/cc
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Rw from (I) column in (ohm.m)
Porosity from (II) column-
in Decimal
Formation Resistivity (Rt)
in Ohm.m
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Shale Resistivity, From nearest shale
formation in ohm.m :
Shale Volume by
(GRlog-GRclean)/(GRshale-GRclean)formula:
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This column helps you to find Rw (formation Water Resistivity. If
you know Salinity you can find Rw. If you don't know salinity you must use SP
log and mud resistivities
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Enter formation porosity from Neutron log (as
0.12 )
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This column computes porosity by using Density Neutron logs
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This column computes Sw (Water saturation abd So (Oil saturaion) of formations.
If you choose clean formation program ignores shale resistivity and volume
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