PetroCalcHubFree
Browse
23 indexed pages

Gas Properties Calculators

Use 23 gas properties petroleum engineering calculators with formulas, inputs, outputs, units, and source references.

Gas Properties calculators group related upstream petroleum engineering formulas by workflow so engineers can find the right calculation faster.

23
Calculators
Free
No sign-in
Sources
Reviewable
Phase Behavior and ThermodynamicsGas Properties

Beggs-Brill Gas Z-Factor Correlation

z=A+(1−A)e−B+CPprDz=A+(1-A)e^{-B}+CP_{pr}^{D}
Open calculator
Phase Behavior and ThermodynamicsGas Properties

Corrected Sour Gas Pseudo-Reduced Properties

Ppr′=PPpc′P'_{pr}=\frac{P}{P'_{pc}}
Open calculator
Phase Behavior and ThermodynamicsGas Properties

Gas Hydrate Dissociation Pressure

ph=0.1450377exp⁡([2.50744×10−3(γh+0.46852)3+1.214644×10−2Fm−4.676111×10−4Fm2+0.0720122]T+3.6625×10−4(γh−0.485054)3−5.44376Fm+3.89×10−3Fm2−29.9351)p_h=0.1450377\exp\left(\left[\frac{2.50744\times10^{-3}}{(\gamma_h+0.46852)^3}+1.214644\times10^{-2}F_m-4.676111\times10^{-4}F_m^2+0.0720122\right]T+\frac{3.6625\times10^{-4}}{(\gamma_h-0.485054)^3}-5.44376F_m+3.89\times10^{-3}F_m^2-29.9351\right)
Open calculator
Phase Behavior and ThermodynamicsGas Properties

Gas Molecular Weight from Specific Gravity

Mg=28.967γgM_g=28.967\gamma_g
Open calculator
Phase Behavior and ThermodynamicsGas Properties

Generalized Virial Gas Z-Factor Correlation

z=1+(B0+ωB1)PprTprz=1+\frac{(B^0+\omega B^1)P_{pr}}{T_{pr}}
Open calculator
Phase Behavior and ThermodynamicsGas Properties

Hydrate Formation Temperature from Modified Clapeyron Criterion

Th=3.89Ch0.5T_h=3.89C_h^{0.5}
Open calculator
Phase Behavior and ThermodynamicsGas Properties

Kay Mixing Rule Gas Pseudo-Critical Properties

Tpc=∑iyiTciT_{pc}=\sum_i y_iT_{ci}
Open calculator
Phase Behavior and ThermodynamicsGas Properties

Lee-Gonzalez-Eakin Gas Viscosity

μg=10−4Kexp⁡(XρgY)\mu_g=10^{-4}K\exp(X\rho_g^Y)
Open calculator
Phase Behavior and ThermodynamicsGas Properties

Necessary Inhibitor Concentration Required in Liquid Phase to Reduce Hydrate Point

X=100dMdM+2335X=\frac{100dM}{dM+2335}
Open calculator
Phase Behavior and ThermodynamicsGas Properties

Papay Gas Z-Factor Correlation

z=1−3.53Ppr100.9813Tpr+0.274Ppr2100.8157Tprz=1-\frac{3.53P_{pr}}{10^{0.9813T_{pr}}}+\frac{0.274P_{pr}^2}{10^{0.8157T_{pr}}}
Open calculator
Phase Behavior and ThermodynamicsGas Properties

Pseudo-Reduced Conditions

Pr=P(PcAPcB)0.5P_r = \frac{P}{(P_{cA}P_{cB})^{0.5}}
Open calculator
Phase Behavior and ThermodynamicsGas Properties

Pseudo-Reduced Gas Properties from Critical Properties

Ppr=PPpcP_{pr}=\frac{P}{P_{pc}}
Open calculator
Phase Behavior and ThermodynamicsGas Properties

Real Gas Density

ρg=PMgzRT\rho_g=\frac{P M_g}{zRT}
Open calculator
Phase Behavior and ThermodynamicsGas Properties

Real Gas Isothermal Compressibility with Z-Factor Derivative

cg=1P−1z(dzdP)Tc_g=\frac{1}{P}-\frac{1}{z}\left(\frac{dz}{dP}\right)_T
Open calculator
Phase Behavior and ThermodynamicsGas Properties

Real Gas Pseudopressure Derivative

dmdp=2pμgz\frac{dm}{dp}=\frac{2p}{\mu_g z}
Open calculator
Phase Behavior and ThermodynamicsGas Properties

Real Gas Pseudopressure Difference for Constant Mu-Z

Δm=p22−p12μgz\Delta m=\frac{p_2^2-p_1^2}{\mu_g z}
Open calculator
Phase Behavior and ThermodynamicsGas Properties

Real Gas Pseudopressure Trapezoidal Increment

Δm=12(D1+D2)(p2−p1)\Delta m=\frac{1}{2}(D_1+D_2)(p_2-p_1)
Open calculator
Phase Behavior and ThermodynamicsGas Properties

Specific Gravity of Gas Hydrate Forming Components

Γh=mh28.96\Gamma_h=\frac{m_h}{28.96}
Open calculator
Phase Behavior and ThermodynamicsGas Properties

Standing Dry Gas Pseudo-Critical Properties

Tpc=168+325γg−12.5γg2T_{pc}=168+325\gamma_g-12.5\gamma_g^2
Open calculator
Phase Behavior and ThermodynamicsGas Properties

Standing Wet Gas Pseudo-Critical Properties

Tpc=187+330γg−71.5γg2T_{pc}=187+330\gamma_g-71.5\gamma_g^2
Open calculator
Phase Behavior and ThermodynamicsGas Properties

Sutton Pseudo-Critical Gas Properties

Tpc=169.2+349.5γg−74.0γg2T_{pc}=169.2+349.5\gamma_g-74.0\gamma_g^2
Open calculator
Phase Behavior and ThermodynamicsGas Properties

Water Content of Sour Gas

W=yWhc+yCO2WCO2+yH2SWH2SW=yW_{hc}+y_{CO2}W_{CO2}+y_{H2S}W_{H2S}
Open calculator
Phase Behavior and ThermodynamicsGas Properties

Wichert-Aziz Sour Gas Pseudo-Critical Correction

Tpc′=Tpc∗−ϵT'_{pc}=T^*_{pc}-\epsilon
Open calculator