PVT Calculators
Free petroleum PVT calculators for gas formation volume factor, real-gas density, fluid properties, oil and gas correlations, and reservoir-fluid screening.
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How to use this workflow
Use PVT calculators when a reservoir, production, or material-balance workflow needs fluid property estimates.
Confirm whether each equation requires absolute pressure or absolute temperature before entering field values.
Use source notes and limitations to decide whether a correlation is appropriate for the fluid system being screened.
Priority calculators
These pages include variables, units, source context, default examples, and assumptions for answer-ready search snippets.
Al-Marhoun Bubble Point Pressure
Al-Marhoun Bubble Point Pressure calculates bubble point pressure for pvt properties workflows in phase behavior and thermodynamics.
Al-Marhoun Saturated Oil Formation Volume Factor
Al-Marhoun Saturated Oil Formation Volume Factor calculates saturated oil formation volume factor for pvt properties workflows in phase behavior and thermodynamics.
Al-Marhoun Solution Gas-Oil Ratio from Bubble Point Pressure
Al-Marhoun Solution Gas-Oil Ratio from Bubble Point Pressure calculates solution gas-oil ratio at bubble point for pvt properties workflows in phase behavior and thermodynamics.
Average Compressibility of Oil
Average Compressibility of Oil calculates average oil compressibility for pvt properties workflows in phase behavior and thermodynamics.
Average Gas Solubility
Average Gas Solubility calculates average gas solubility for pvt properties workflows in phase behavior and thermodynamics.
Beggs-Standing Oil Formation Volume Factor Above Bubble Point
Beggs-Standing Oil Formation Volume Factor Above Bubble Point calculates oil formation volume factor for pvt properties workflows in phase behavior and thermodynamics.
Beggs-Standing Oil Formation Volume Factor Below Bubble Point
Beggs-Standing Oil Formation Volume Factor Below Bubble Point calculates oil formation volume factor for pvt properties workflows in phase behavior and thermodynamics.
Benedict-Webb-Rubin PVT Equation
Benedict-Webb-Rubin PVT Equation calculates pressure for pvt properties workflows in phase behavior and thermodynamics.
Equilibrium Vaporization Ratio
Equilibrium Vaporization Ratio calculates equilibrium vaporization ratio for pvt properties workflows in phase behavior and thermodynamics.
Equilibrium Vaporization Ratio of Heptane
Equilibrium Vaporization Ratio of Heptane calculates equilibrium vaporization ratio for pvt properties workflows in phase behavior and thermodynamics.
Gas Expansion Factor from Formation Volume Factor
Gas Expansion Factor from Formation Volume Factor calculates gas expansion factor for pvt properties workflows in reservoir engineering.
Gas Formation Volume Factor
Gas formation volume factor converts gas volume between reservoir conditions and standard surface conditions using pressure, temperature, and gas z-factor.
Glaso Bubble Point Pressure
Glaso Bubble Point Pressure calculates bubble point pressure for pvt properties workflows in phase behavior and thermodynamics.
Glaso Saturated Oil Formation Volume Factor
Glaso Saturated Oil Formation Volume Factor calculates saturated oil formation volume factor for pvt properties workflows in phase behavior and thermodynamics.
Glaso Solution Gas-Oil Ratio from Pressure
Glaso Solution Gas-Oil Ratio from Pressure calculates solution gas-oil ratio for pvt properties workflows in phase behavior and thermodynamics.
Glaso Solution Gas-Oil Ratio from Saturated Oil FVF
Glaso Solution Gas-Oil Ratio from Saturated Oil FVF calculates solution gas-oil ratio for pvt properties workflows in phase behavior and thermodynamics.
Glaso Undersaturated Oil Formation Volume Factor
Glaso Undersaturated Oil Formation Volume Factor calculates undersaturated oil formation volume factor for pvt properties workflows in phase behavior and thermodynamics.
Instantaneous Gas-Oil Ratio
Instantaneous Gas-Oil Ratio calculates instantaneous gas-oil ratio for pvt properties workflows in reservoir engineering.