Drilling and Insitu Tests

Dual Focused Resistivity


The main purpose is determined a real resistivity values of formation behind the invasion zone. The natural potential (SP) measuring apparatus is added on the probe.

Electrical measurement studies are executed with Dual Focused Electric system that is manufactured by Robertson Geologging.

  • To be able to calculate water saturation of a formation, the real formation resistivity is measured by the probe.
  • The measurement also helps determining the boundaries of the correlation of units.
  • Lateralog shallow measurements are adjusted by adding the affect of the invasion zone on deep lateralog.
  • Measurements is used to find Rw (Resistivity of formation water).
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