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 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.