PetroVisor Package
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      VFM (Choke Models) Package

      This package estimates the liquid production rate of naturally flowing wells using various choke models.

      Usage

      Run the workflows from this package to perform the calculations. The schedules may be adapted to use different contexts. To change the used correlation, update the string input in the workflow VFM (Choke Models). By default the Iraqi correlation is used.

      The script VFM Error Estimation can be used to estimate the error of the calculated values compared to measured data.

      Details

      The liquid production rate is calculated using data from the last available well test according to one of the following correlations:

      • Iraqi
      • Roberto
      • Baxendell
      • Gilbert
      • Ros
      • Pilehavari
      • Achong
      • Roberto Python

      Data Requirements

      The following data is required on well level:
       choke size
       well head pressure
       well test gas production rate
       well test oil production rate
       well test water production rate