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确定气藏参数的方法常常是关井测压。然而，我国有许多气藏渗透率特别低，压力恢复所需的时间特别长，有时长达几个月。因此，有必要研究根据气井生产史确定气藏参数的方法，避免关井给生产带来的损失。在 Ｆｒａｉｍ 提出的适合低渗气藏图版拟合方法基础上，用回归分析，提出了根据生产史确定低渗气藏地层参数计算公式。应用它们无需进行人为图版拟合，就可以确定气藏的储量与气层其它参数。该方法编程容易，参数确定快速准确，且实际操作无需关井，特别适合关井压力恢复需很长时间的低渗气藏。
The method of determining gas reservoir parameters is often shut-in manometry. However, many of our reservoirs have particularly low permeability and require particularly long periods of pressure recovery, sometimes up to several months. Therefore, it is necessary to study the method of determining gas reservoir parameters according to the production history of gas wells, so as to avoid the loss brought by shut-in production. On the basis of Fraim ’s fit map method for low - permeability gas reservoirs, regression formula is used to calculate the formula of formation parameters of low permeability gas reservoir according to the production history. Applying them to determine the reservoir reserves and other parameters of the gas layer without the need for manual plotting. The method has the advantages of easy programming, fast and accurate parameter determination, and no need to close the well in actual operation, and is particularly suitable for the low-permeability gas reservoir which takes a long time to recover the pressure of the shut-in well.