Gas Density

This simple app calculates the density of natural gas at specific reservoir temperature and pressure knowing specific gravity of the gas.

it also accounts for non-hydrocarbon effects on the Z factor.

it calculates the pseudo-critical pressure and temperature using standing correlation.

it adjusts the pseudo-critical properties of the gases to account for the presence of the nonhydrocarbon components using two methods:

1. The Wichert-Aziz Correction Method:

for Natural gases that contain H2S and or CO2 frequently exhibit different compressibility-factor behavior than do sweet gases.

2. The Carr-Kobayashi-Burrows Correction Method:

for Natural gases that contain H2S and or CO2 and or N2 frequently exhibit different compressibility-factor behavior than do sweet gases.

Z factor is calculated using The Dranchuk-Abu-Kassem Method.

The gas density is calculated from the real gas equation of state using the computed Z factor and the given pressure, temperature and specific gas gravity.