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Reservoir EngineeringPressure Transient Analysis

Dimensionless Wellbore Storage Coefficient of Radial Flow – Constant-Rate Production Calculator

Cd=0.8936⋅Cϕ⋅ct⋅h⋅rw2C_d = \frac{0.8936 \cdot C}{\phi \cdot c_t \cdot h \cdot r_w^2}

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

5 variables

Calculation runs locally with the shared TypeScript engine.

Formula reference

Dimensionless Wellbore Storage Coefficient of Radial Flow – Constant-Rate Production calculates dimensionless wellbore storage coefficient for pressure transient analysis 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.