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介绍了一个可精确推算混输油气热物性的软件模型TPOG（ThermalPropertiesofOilGas）。该模型计算物性参数多，可以满足油气混输稳态模型和瞬态模型计算的需要，能适应多种组成分析方法，输入参数简单，使用方便。
A software model named TPOG (ThermalPropertiesofOilGas) is introduced to accurately predict the thermal properties of mixed gas. The model has many physical parameters, which can meet the need of steady state model and transient model calculation of oil-gas mixing. It can adapt to many kinds of composition analysis methods with simple input parameters and easy to use.