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Water-Drive Recovery Efficiency - Craig Correlation Calculator

ER=54.898(ϕ(1−Sw)Boi)0.0422(kμwiμoi)0.0770Sw−0.1903(PiPa)−0.2159E_R=54.898\left(\frac{\phi(1-S_w)}{B_{oi}}\right)^{0.0422}\left(\frac{k\mu_{wi}}{\mu_{oi}}\right)^{0.0770}S_w^{-0.1903}\left(\frac{P_i}{P_a}\right)^{-0.2159}

Enter the required inputs, confirm the units, and run the calculator to solve E_R. 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.

8 variables

Calculation runs locally with the shared TypeScript engine.

Formula reference

Water-Drive Recovery Efficiency - Craig Correlation calculates water-drive recovery efficiency for waterflooding and eor workflows in reservoir engineering.

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.