PVT tool

Short Description

PVT tool provides the basic input for any Petroleum Engineering calculation.

PVT tool calculates the main properties of oil, gas and water for oil or gas wells using a set of black-oil correlations.

Main features

• Plots of PVT properties vs pressure at reservoir temperature.
• Output section contains values under reservoir conditions.
• Results section contains values under standard conditions and at pressures between surface atmospheric and reservoir at reservoir temperature

Interface features

PEngTools PVT Calculator

• "Default values" button resets input values to the default values.
• Switch between Metric and Field units.
• Save/load models to the files and to the user’s cloud.
• Export pdf report containing input parameters, calculated values and plots of the PVT properties.
• Share models to the public cloud or by using model’s link.
• Continue your work from where you stopped: last saved model will be automatically opened.
• Download the chart as an image or data and print (upper-right corner chart’s button).
• Export results table to Excel or other application.

References

Property	Correlation	Reference
Bubble point	Valco - McCain	Valkó, P.P. and McCain, W.D. Jr . 2003. Reservoir oil bubblepoint pressures revisited; solution gas–oil ratios and surface gas specific gravities. J. Pet. Sci. Eng. 37 (3–4): 153-169.
Gas-oil ratio	Velarde	Velarde, J., Blasingame, T.A., and McCain Jr., W.D. 1997. Correlation of Black Oil Properties At Pressures Below Bubble Point Pressure - A New Approach. Presented at the Annual Technical Meeting of CIM, Calgary, Alberta, 8–11 June. PETSOC-97-93.
Oil density	McCain	W.D. McCain, Jr, N.C. Hill: Correlations for Liquid Densities and Evolved Gas Specific Gravities for Black Oils during Pressure Depletion, SPE, 30773, 1995.
Oil FVF	McCain	W.D. McCain, Jr: The Properties of Petroleum Fluids, Second edition, Tulsa, Oklahoma, 1990.
Oil viscosity	Beggs - Robinson	Vazquez, M. and Beggs, H.D. 1980. Correlations for Fluid Physical Property Prediction. J Pet Technol 32 (6): 968-970. SPE-6719-PA.
Oil compressibility	Farshad	Frashad, F., LeBlanc, J.L., Garber, J.D. et al. 1996. Empirical PVT Correlations For Colombian Crude Oils. SPE-36105-MS. http://petrowiki.org/Calculating_PVT_properties
Z factor	Dranchuk	Dranchuk, P.M. and Abou-Kassem, H. 1975. Calculation of Z Factors For Natural Gases Using Equations of State. J Can Pet Technol 14 (3): 34. PETSOC-75-03-03.
Gas density	Standard equation	http://petrowiki.org/Gas_formation_volume_factor_and_density
Gas FVF	Standard equation	http://petrowiki.org/Gas_formation_volume_factor_and_density
Gas viscosity	Lee	Lee, A.L., Gonzalez, M.H., and Eakin, B.E. 1966. The Viscosity of Natural Gases. J Pet Technol 18 (8): 997–1000. SPE-1340-PA.
Gas compressibility	Standard equation	http://petrowiki.org/Isothermal_compressibility_of_gases
Water density	McCain	McCain Jr., W.D. 1991. Reservoir-Fluid Property Correlations-State of the Art. SPE Res Eng 6 (2): 266-272. SPE-18571-PA.