Water formation volume factor
Water formation volume factor: WATER A2.1. Formation Volume Factor McCain The McCain (1990) correlation is a classical method for calculating the formation water volume factor.…
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McCain
The McCain (1990) correlation is a classical method for calculating the formation water volume factor. The method accounts for the effects of pressure, temperature, salinity (TDS), and dissolved gas, offering a physically grounded model with high accuracy. A key feature is the separate treatment of water compressibility and thermal expansion. For formation waters with TDS > 50,000 ppm, a salinity correction is required.
Recommended applicability range:
- Temperature: 100 – 400 °F
- Salinity (TDS): 0 – 200,000 ppm
- Gas content: 0 – 50 SCF/STB
- Pressure: 14.7 – 10,000 psi