PetroCalcHubFree
Browse
Reservoir EngineeringPressure Transient Analysis

Pseudosteady-State Flowing Pressure for Non-Circular Reservoir Calculator

Pwf=pi−162.6QBμkhlog⁡10(2.2458ACArw2)−0.23396QBtAhϕctP_{wf}=p_i-\frac{162.6QB\mu}{kh}\log_{10}\left(\frac{2.2458A}{C_Ar_w^2}\right)-\frac{0.23396QBt}{Ah\phi c_t}

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

12 variables

Calculation runs locally with the shared TypeScript engine.

Formula reference

Pseudosteady-State Flowing Pressure for Non-Circular Reservoir calculates well flowing pressure 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.