The energy consumption of oil collection increases rapidly after oilfield enters the stage of high water cut. Carrying out gathering and transportation at normal or low temperature can save cost and bring certain enterprise benefit. In order to judge whether the gathering and transportation can be carried out at normal or low temperature, the thermodynamic hydraulic calculation model is constructed and modified according to the field measured data. Then the thermally hydraulic coupling calculation is carried out to determine the gathering and transportation radius. The single factor sensitivity analysis method was used to rank the sensitivity of the factors influencing the gathering and transportation radius, and the radius chart is made. The results show that the modified thermo-hydraulic model can better predict the temperature and pressure drop, and the average error of the calculated and the measured value is 2.5% and 7.67%. The four most influential factors from strong to weak are starting point temperature, liquid yield, moisture content of mass and ambient temperature. The chart drawn by the factors provides the basis for the normal temperature gathering and transportation of the pipeline, so the required temperature at the start of the pipe can be determined by querying the chart.

油田进入高含水期后，集油能耗迅速增加。在常温或低温下进行收集和运输可以节省成本并带来一定的企业利益。为了判断是否可以在常温或低温下进行采集和运输，根据现场实测数据建立并修改了热力学水力计算模型。然后进行热力耦合计算以确定收集和运输半径。采用单因素敏感性分析方法对影响集输半径的因素的敏感性进行排序，并绘制出半径图。结果表明，改进的热工水力模型可以较好地预测温度和压力降，计算值和测量值的平均误差为2.5％和7.67％。从强到弱四个最有影响力的因素是起点温度，液体收率，质量含水量和环境温度。这些因素绘制的图表为管道的正常温度收集和运输提供了基础，因此可以通过查询图表来确定管道起点处的所需温度。