PetroCalcHubFree
Browse
PetrophysicsElectrical Properties

Non-Ideal Shale Membrane Efficiency from Shale Resistivity Calculator

meff=0.47+0.3Rshm_{eff}=0.47+0.3R_{sh}

Enter the required inputs, confirm the units, and run the calculator to solve m_eff. Review the formula source and assumptions before using the result in engineering work.

Tabular solver

Inputs

Defaults provide a quick field-unit example for the equation.

1 variables

Calculation runs locally with the shared TypeScript engine.

Formula reference

Non-Ideal Shale Membrane Efficiency from Shale Resistivity calculates membrane efficiency for electrical properties workflows in petrophysics.

View formula, units, and source

Assumptions

  • Input values are representative for the well, reservoir, fluid, or equipment case being evaluated.
  • The declared units match the field-unit constants used in the formula.
  • The cited formula applies to the selected petroleum engineering workflow.

Common mistakes

  • Mixing unit systems without converting the inputs.
  • Using default example values as field recommendations.
  • Applying the formula outside the source assumptions.