Due to high wax content and high freezing point of high pour point oil, wax precipitation would severely affect production. On the basis of principles of heat transfer,a mathematical model was established to calculate wellbore temperature distribution. The factors influencing wellbore temperature of four high pour point oil wells in Weibei Oilfield were analyzed. The results showed that the fluid production, water cut,tubing thermal conductivity and heating power of heating sucker rod mainly impact wellbore temperature. Production time had less impact on the wellbore temperature. So the increase of fluid production,tubing thermal resistance and electric heat power can restrain wax precipitation,while the increase of water cut(emulsified water)exacerbate wax precipitation. There exist the optimal heating parameters in electric heating. Reservoir stimulations (such as extract, fracturing, water injection, etc. ), emulsion breaking,insulated tubing and shaft electric heating can effectively improve the mobility of high pour point oil and help high pour point oil lifting.%高凝原油由于含蜡量高、凝固点高,井筒结蜡严重,开采效果差.根据传热学基本原理,建立了高凝原油井筒温度场数学模型,并选取了潍北油田的4口生产井,对影响井筒温度场的因素进行了分析.结果表明,油井产液量、体积含水率、油管导热系数和电热杆加热功率对井筒温度影响较大,生产时间对井筒温度的影响较小；油井产液量、油管导热热阻和电热杆加热功率的增加对改善井筒结蜡状况有利,而体积含水率(乳化水)的增加对井筒结蜡具有恶化作用,井筒电热杆加热存在最优的加热参数；采取增产(如提液、压裂、注水等)、原油破乳、保温油管以及井筒电热杆加热等措施,可有效改善高凝原油的流动性,实现高凝原油的正常举升.
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