For the buried hot waxy crude pipeline running at low flux, the new best pigging period model is established based on old pigging period model, which consider paraffin deposit thickness.

• 针对热含蜡原油管道低输量下运行现状,在原有经济清蜡周期模型基础上考虑余蜡厚度的影响,建立了含清蜡周期和余蜡厚度两个自变量的最优清蜡周期模型。