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Effective Wellbore Radius of a Horizontal Well – van der Vlis et al. Method Calculator

rwe=L4⋅(0.454⋅sin⁡(360⋅rwh))hLr_{we} = \frac{L}{4} \cdot \left( 0.454 \cdot \sin\left(360 \cdot \frac{r_w}{h} \right) \right)^{\frac{h}{L}}

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

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Inputs

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

3 variables

Calculation runs locally with the shared TypeScript engine.

Formula reference

Effective Wellbore Radius of a Horizontal Well – van der Vlis et al. Method calculates effective wellbore radius for well performance 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.