A calculation model of natural gas compression factor

Liuweijun

Abstract

“GBT/17747.2 Natural gas-Calculation of compression factor- Part 2 ” refers to the calculation method of “AGA8-92DC” equation, which is very accurate for the calculation of conventional natural gas compressibility factor, but in the calculation process, a large number of intermediate variables, positioning parameters and interactive parameters are introduced, which makes the calculation process more complicated. Based on the critical state of mixed gas, a new fitting formula is proposed to replace the binary interaction parameters used in “PR” equation, so as to simplify the calculation process. Compared with the original “PR” equation and “AGA8-92DC” equation, the calculation results of conventional natural gas compressibility factor and acid natural gas compressibility factor are more close to the laboratory measured compressibility factor.

Keywords

Natural gas compression factor; PR equation

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IMEKO-TC9-2019-009.pdf

DOI

10.21014/tc9-2022.009

IMEKO TC

TC9 - Flow Measurement

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