稠油油藏中含内热源多孔介质的传热研究

The research on heat transfer of combustible porous media with inner heat source

立足于稠油热采技术,通过研究分析储层中含内热源多孔介质的传热机理,建立相应的传热计算模型,给出稠油油藏多孔介质在内热源作用下的温度分布,从而了解温度对油层中原油(尤其是稠油)性质的影响。文中以火烧油层工艺为例,考虑了由生产井注入空气与油层(即含内热源多孔介质)中原油的燃烧放热反应这一因素。运用了数理方程、渗流力学、采油工程等方面的知识,建立了含内热源多孔介质一维传热模型,并对所建立的一维传热微分方程进行求解,得到油层多孔介质在内热源作用下的温度场分布。研究油层多孔介质内部温度场分布对原油开采有重要指导意义。

Based on the development of heavy oil field thermal recovery, this article analyzed the heat transfer mechanism in combustibility porous media, established corresponding heat transfer calculation model and presented the inner temperature distribution under the effect of inner source. So we could have a better understanding the impact of the reservoir temperature on crude oil （especially heavy oil）.As the example of in-site combustion, using mathemtical equations, complex function, fluid mechanics in porous medium, petroleum en- gineering and other areas of knowledge, concerning oil combustion exothermic reaction be- tween injecting air and! oil of reservoir （containing heat within porous media）, the author established one -dimensional equation to solve heat transfer of porous media reservoir, at last gained the temperature distribution of porous media reservoir with inner heat source. The temperature distribution of porous media have extraction. a important guiding significance for crude oil extraction.