PetroCalcHubFree
Browse
Production EngineeringInjection Wells

Injectivity Index Calculator

Ii=qiPwf−PrI_i = \frac{q_i}{P_{wf} - P_r}

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

3 variables

Calculation runs locally with the shared TypeScript engine.

Formula reference

Injectivity Index calculates injectivity index for injection wells workflows in production 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.