Pseudo Steady Two Phase Forecast Plot


This spreadsheet will be help you to calculate Pseudo Steady Two Phase Forecast with the plot. Like a other free spreadsheet in petroleum support you can use this spreadsheet.

What is Pseoudo steady two phase

If the reservoir is below bubble point pressure  the situation is more complicated. Now there are two hydrocarbon phases in the reservoir, gas saturated oil and liberated solution gas. During production to the surface, solution gas will be evolved from the oil phase and the total surface gas production will have two components; the gas which was free in the reservoir and the gas liberated from the oil during production. These separate components are indistinguishable at the surface and the problem is, therefore, how to divide the observed surface gas production into liberated and dissolved gas volumes in the reservoir.

Description

  • Phase diagram
  • Gas-oil ratio in saturated reservoirs
  • Properties of two-phase fluids, relative permeability
  • Comparing single and two-phase flows
    1. Steady state
    2. Pseudo-steady state

Inflow performance relationship (IPR)

  • Two-phase flow

Assumption method using

  • Vogel’s correlations
  • Generalized Vogel’s correlations
  • Fetokovich’s approximation

How to use

    1. Input data required in blue text like
      pseudo steady state input

      • initial oil in place
      • Bubble point presssure
      • Abandonment pressure
      • Water saturation
      • Oil viscosity
      • Gas viscosity
      • Bo
      • Bg
      • Rs
    2. Modify kro and krg formula in the green cells
    3. Click “Solution” Button
    4. Review results in table and graph.

pseudo steady state output plot

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Author: 

Hero Santoso Effendi Petroleum Engineer From Indonesia, working on oil and gas industry. Bachelor Degree on Petroleum Engineer UPN Veteran Yogyakarta University. Working and learning hard sharing for complete my life. Programmer is my other skill. Find Me on Link below :

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