14 April 2012

Natural gas volume compressibility correction methods

When it comes to volume correction of natural gas, it refers to Pressure, Temperature and Compressibility aka "PTZ" correction.

P and T correction is rather straight forward as it is basically a ratio between Actual Value over Base Value.

Z correction is however a bit more complex. I wont go deep into this, but suffice at this moment to share that multiple methods / calculations are used in the industry as below:


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