本文根据文献[2]中提出的井温及井筒总传热系数计算方法,结合采油井下入隔热油管防蜡的情况,进一步介绍了不同井身结构下井温的计算公式及步骤,并研究了隔热油管下入深度对井温分布的影响规律,得出隔热油管下入深度与井口产液温度的回归方程式。此外,文章还给出了隔热油管用于防蜡时最佳下入深度的确定方法。 Based on the well temperature and wellbore heat transfer coefficient calculation method proposed in reference [2], the paper also introduces the calculation formula and steps of well temperature under different wellbore structures, Heat pipe into the depth of the distribution of well temperature law, obtained under the depth of heat pipe and wellhead fluid temperature regression equation. In addition, the article also gives the determination of the optimal depth of penetration of the insulated tubing for wax prevention.