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Motivation
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Definition
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Mathematical model of multiphase wellbore flow predicts the temperature, pressure and flow speed distribution along the wellbore trajectory with account for:
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The 3-phase water-oil-gas model is usually built as a superposition of gas-liquid model and then oil-water model:
Application
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| 1 | WPA – Well Performance Analysis | Optimizing the lift performance based on the IPR vs VLP models |
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| 2 | Dynamic Modelling | Relating production rates at separator to bottom-hole pressure with VLP |
| 3 | PRT – Pressure Testing | Adjust gauge pressure to formation datum |
| 4 | PLT – Production Logging | Interpretation of pressure-temperature logs and multiphase sensors |
Mathematical Model
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The multiphase wellbore flow in hydrodynamic and thermodynamic equilibrium is defined by the following set of 1D equations:
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