从理论上分析了在大气温度变化的影响下埋地热油管道的运行参数以及周围土壤环境均随季节变化而呈现准周期变化规律，在分析大量实际运行数据的基础上，进一步验证了该规律的合理性，建议在有关管道的节能降耗、优化运行以及经济清蜡等问题的研究中，应该考虑运行参数的滞后影响。

Subjected to the annual changes of the air temperature, the quasi-period rules of the operational parameters of the buried hot oil pipelines and the surrounding soil temperature are theoretically presented in this paper. On the basis of large numbers of actual operational data, the rationality of the rules is further validated. In addition, the delay of the operational parameters must be considered in the studies of the saving energy, optimizing operation and economically pigging for hot oil pipelines.