Abstract: The energy consumption of oil gathering increases rapidly after the oil field enters the high water cut stage.If the normal temperature gathering and transportation is carried out,the cost can be saved,which can bring the enterprise benefit.In order to judge whether the pipeline can carry out normal temperature gathering and transportation,according to the field measured data,the thermo⁃hydraulic calculation model is constructed and modified, the thermo⁃hydraulic coupling calculation is carried out, the normal temperature gathering and transportation radius of the pipeline is determined,and the sensitivity of each influencing factor of the normal temperature gathering and transportation radius is sequenced by the single factor sensitivity analysis method.On this basis,the normal temperature gathering radius chart is developed to provide guidance for the surface normal temperature gathering work.The results show that the modified thermo⁃hydraulic model can predict the pressure drop and temperature drop of the pipeline,and the average relative errors between the calculated value and the measured value are 9.42% and 5.31%.The three most influential factors on the normal temperature gathering radius are the starting point temperature,the starting point pressure and the liquid production.The chart drawn by the above three factors provides the basis for the feasibility of normal temperature gathering and transportation in the pipeline,if not,the temperature and pressure required for the starting point of the pipeline can be determined by querying the chart.

Key words: Oil?gas?water, Normal temperature gathering and transportation, Radius of gathering and transportation, Thermo?hydraulic calculation, Normal temperature gathering and transportation chart

摘要： 油田进入高含水期后集油能耗迅速上升，如果开展常温集输可节约成本，带来一定的企业效益。为判断管道能否进行常温集输，根据现场实测数据，构建并修正水力热力计算模型，进行水力热力耦合计算，确定了管道的常温集输半径，并采用单因素敏感性分析方法对常温集输半径各影响因素的敏感性进行排序，在此基础上研制常温集输半径图版，为地面常温集输工作提供指导。结果表明，修正后的水力热力模型可以较好地预测该管道的压降、温降，其计算值与实测值的平均相对误差分别为9.42%、5.31%；对常温集输半径影响最大的三个因素为起点温度、起点压力、产液量；利用以上三个因素绘制的图版为管道能否实施常温集输提供了依据，当不能常温集输时，可以通过查询图版确定管道起点所需的温度压力。

关键词: 油气水, 　常温集输, 　集输半径, 　水力热力计算, 常温集输图版