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Heat loss calculation method of thermal fluid injection along wellbore
Author(s): 
Pages: 1344-1348
Year: Issue:  10
Journal: Journal of Liaoning Technical University(Natural Science Edition)

Keyword:  thermal fluidwellboreheat loss calculationanalytical solutiontemperature variationsimulationnumerical analysis;
Abstract: 针对稠油热采热流体注入过程,采用理论分析和数值模拟计算的方法,建立了注入过程的能量平衡方程,给出了精确解析解;对相变流体(蒸汽)注入过程,给出了热损数值计算方法.基于无相变热流体温度变化精确解析解进行了计算,分析了油管隔热性能、地温梯度和对注入流量变化等对沿程温降影响.研究结果表明:油管隔热性能越好注入流体的热损失越小,热流体注入的速度较大时有利于减少散热损失.研究结论对于减少热量损失、提高原油产量有一定的参考价值.
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