但是,上式在定义μφχ时不考虑抽气和泄漏,定义μφχ时不考虑析水和泄漏,而析水、抽气、泄漏三者是有影响的。因此,上式在理论上是不严谨的,必然会带来误差。 由于理论上的不严谨,在计算中往往出现一些奇怪的现象。例如,文献[1]P 74例题中后面级的析水系数就大于前面级的析水系数,即前面级析了水,但后面级吸入的气量仍多于前面级,这是不合逻辑的。 However, the above formula does not consider the extraction and leakage in the definition of μφχ, while the definition of μφx does not consider the analysis of water and leakage, while the water analysis, pumping, leakage of three are influential. Therefore, the above formula is not rigorous in theory, it will inevitably bring about errors. Due to the lack of theory, strange phenomena often appear in the calculation. For example, in [74] P. 74, the back-stage water-formation coefficient is greater than the previous stage water-cut coefficient, which means that the water was previously analyzed, but it is inconsequential that the amount of gas drawn in the back stage is still higher than the previous stage.