True formation resistivity | Article about true formation resistivity by The Free Dictionary
true formation resistivity
true formation resistivity[′trü fȯr′mā·shən ‚rē·zis′tiv·əd·ē]
Electrical resistivity of a clean (nonshaly) porous reservoir formation containing hydrocarbons and formation water; value is greater than the resistivity when there is added water incursion.
References in periodicals archive
In the plot of the true formation resistivity versus effective porosity, the Archie's parameters were calculated (a=1, m=2.06 and n=2).
[R.sub.t] = True Formation Resistivity for uninvaded zone, ohm-m