Category: PVT

From wiki.pengtools.com
Jump to: navigation, search

PVT fluid properties calculator

PVT calculator software at pengtools.com

PVT calulator is the core PVT engine of the pengtools.

PVT software calculates the main properties of oil, gas and water using a set of black-oil correlations and provides the basic input for any Petroleum Engineering calculation.

PVT software is available online at www.pengtools.com.

Typical applications

  • Calculation of fluid properties for oil, gas and water.
  • Generating the PVT model
  • Matching the PVT model to the Lab data
  • Exporting PVT tables to Excel or reservoir simulator

Main features

  • Plots of PVT properties vs pressure at reservoir temperature
  • Results table contains values under standard conditions and at pressures between surface atmospheric and reservoir at reservoir temperature
  • "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
  • Share models to the public cloud or by using model’s link
  • Export pdf report containing input parameters, calculated values and plots of the PVT properties
  • 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

Flow Diagram

Pengtools.com PVT fluid properties calculator Flow Diagram.png

Demo

What to do when you need a PVT model quick? Watch our demo video on how to create a PVT model in 5 min?

Watch on youtube

In this demo we are solving the PVT exercise 11-2 of William McCain's book "The Properties of Petroleum Fluids".

Fluid properties correlations

Property Correlation Reference
Bubble point Valko - 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 compressibility Vasquez and Beggs Vasquez, M.; Beggs, H.D. (1980). "Correlations for Fluid Physical Properties Prediction"Free registration required. Journal of Petroleum Technology. Society of Petroleum Engineers. 32 (SPE-6719-PA).
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 and Robinson

Beggs, H. D.; Robinson, J. R. (September 1975). "Estimating the Viscosity of Crude Oil Systems"Free registration required. Journal of Petroleum Technology. 27(09) (SPE-5434-PA).

Vasquez, M. and Beggs, H.D. 1980. Correlations for Fluid Physical Property Prediction. J Pet Technol 32 (6): 968-970. SPE-6719-PA.
Gas oil interfacial tension Baker and Swerdloff Baker, O. and Swerdloff, W. 1955. Calculation of Surface Tension 3—Calculating parachor Values. Oil Gas J. (5 December 1955): 141.
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 compressibility Standard equation http://petrowiki.org/Isothermal_compressibility_of_gases
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 density Standard equation http://petrowiki.org/Gas_formation_volume_factor_and_density
Water salinity McCain McCain Jr., W.D. 1991. Reservoir-Fluid Property Correlations-State of the Art. SPE Res Eng 6 (2): 266-272. SPE-18571-PA.
Water Formation Volume Factor McCain McCain Jr., W.D. 1991. Reservoir-Fluid Property Correlations-State of the Art. SPE Res Eng 6 (2): 266-272. SPE-18571-PA.
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.
Water compressibility McCain McCain Jr., W.D. 1991. Reservoir-Fluid Property Correlations-State of the Art. SPE Res Eng 6 (2): 266-272. SPE-18571-PA.
Water viscosity McCain McCain Jr., W.D. 1991. Reservoir-Fluid Property Correlations-State of the Art. SPE Res Eng 6 (2): 266-272. SPE-18571-PA.
Gas water interfacial tension Baker and Swerdloff Baker, O. and Swerdloff, W. 1955. Calculation of Surface Tension 3—Calculating parachor Values. Oil Gas J. (5 December 1955): 141.