Based on percolation theory and effective medium theory, a model for calculating the damage severity of waterblocking in gas reservoir was established by truncated Weibull distribution.

• 结合逾渗理论和有效介质理论，采用威布尔分布作为孔喉分布函数，建立了计算气藏水束缚堵塞严重程度的模型，并编制了相应的计算软件。