Understanding and accurately predicting the compressibility factor of natural gas is pivotal for a range of engineering applications, from the design of reservoirs to the optimisation of gas ...

This article presents an easy and simple spreadsheet procedure for custody-transfer calculations of the base compressibility factor for any pair of pressure and temperature conditions. The procedure ...

Two separate correlations for predicting the isothermal compressibility of reservoir fluids and crude oils have been developed. One correlation is based on molecular weight; the other, on API gravity.