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多种稠油开采技术中的传质传热建模及泄油速率对比研究
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Abstract:
世界稠油资源丰富，关于近几十年提出的稠油开采技术，目前大多文章单独分析各技术的产能，少有研究通过建模定性分析各技术泄油速率之间的数量关系。本文对三种采油技术分别进行数学建模，通过数值计算进行求解得到各自的泄油速率，并将三者进行对比。通过数据分析发现，溶剂萃取采油的泄油速率最低，并且泄油速率随时间变化相对不明显。温溶剂萃取采油相比溶剂萃取采油的泄油速率会有明显上升。并且温溶剂萃取采油在温度和溶剂的双重作用下，只需要较低的温度即可达到与蒸汽辅助重力泄油近似的采油效果。
The world has abundant heavy oil resources. Most of the studies on heavy oil extraction technologies proposed in recent decades focus on analyzing the production capacity of each technology individually, with few studies providing a qualitative analysis of the quantitative relationship between the oil recovery rates of each technology through mathematical modeling. This paper presents mathematical modeling of three oil extraction techniques and solves for their respective oil recovery rates through numerical calculations, followed by a comparison among them. Data analysis reveals that the solvent extraction technique has the lowest oil recovery rate, and the rate shows relatively minimal change over time. The oil recovery rate of warm solvent extraction is significantly higher than that of solvent extraction. Moreover, under the combined influence of temperature and solvent, warm solvent extraction can achieve an oil recovery effect similar to that of Steam Assisted Gravity Drainage (SAGD) at a much lower temperature.
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