The construction of a logarithmic diagram is straightforward . 绘制对数图是很容易的。
Semi - logarithmic graph 半对数图
For wells with production history , the modern production decline analysis can be applied to yielding the formation parameters , and the semi - log figure of normalized time vs . normalized pressure is taken as the criterion to validate the calculated results 对具有生产记录的气井,可以采用现代产量递减分析方法反求地层参数,并用标准化时间和标准化压力半对数图,作为检验计算结果正确与否的标准。