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清华大学学报(自然科学版)  2022, Vol. 62 Issue (4): 722-734    DOI: 10.16511/j.cnki.qhdxxb.2022.25.010
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稠油注空气开发技术的基础研究与应用
史琳, 许强辉
清华大学 能源与动力工程系, 北京 100084
Fundamental studies of air injection for heavy crude oil recovery and its applications
SHI Lin, XU Qianghui
Department of Energy and Power Engineering, Tsinghua University, Beijing 100084, China
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摘要 稠油是未来重要接替能源之一,具有黏度高、储量大、开采难度高的特点。稠油注空气开发技术是我国稠油开发的重大战略接替技术,具有原位生热、高采收与绿色低碳的显著优势,但是,其地下的物理化学过程极其复杂,而相应的基础研究工作仍较薄弱。自“十二五”以来,本课题组逐渐在“稠油中低温氧化放热特征与影响因素”“稠油高温氧化燃料(焦炭)的形成和物理化学性质”“稠油氧化的拟组分反应动力学模型”“高温氧化前缘的多物理化学场耦合机制”“井组尺度下油藏中‘热流化’的耦合和传递规律”等研究方向开展了稠油注空气开发技术的基础科学问题研究和工程应用探索。建立了测量稠油氧化放热规律、产物性质与渗流参数的实验装置和方法,构建了多尺度的稠油氧化“热流化”耦合过程的数值模拟方法,这些研究成果有效推动了我国稠油注空气开发技术在基础研究和工程应用上的进步。
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史琳
许强辉
关键词 稠油注空气开采中低温氧化高温氧化热流化耦合多尺度数值模拟    
Abstract:Heavy crude oil is a valuable energy resource that is very abundant but also very viscous which complicates exploitation of these resources. One efficient and environmentally friendly heavy oil recovery technique uses exothermic oxidation reactions with a small amount of the oil reacting with oxygen in the injected pressured air. However, the lack of a thorough fundamental understanding of the complex multiple physicochemical and thermal processes in the reservoir limits broad use of this technique. In the past decade, our research group has conducted fundamental research in this field, including "The basic heat release characteristics and key factors affecting moderate temperature oxidation", "coke formation and chemical properties", "reaction model for low asphaltene heavy oil", "combustion regimes for high temperature oxidation at various operating conditions", and "reservoir scale simulations of the moderate temperature oxidation technique". Experimental systems were constructed to measure the heat release, the product properties and the transport properties during the heavy oil oxidation. Multiscale numerical simulations were developed for pore-scale, lab-scale and reservoir-scale studies to understand the coupling mechanisms at different scales. These research results have improved our fundamental understanding and promoted industrial applications of this heavy oil recovery technique in China.
Key wordsheavy oil    air injection recovery    low-moderate temperature oxidation    high temperature oxidation    thermal-flow-chemistry coupling    multiscale numerical simulations
收稿日期: 2021-09-23      出版日期: 2022-04-14
引用本文:   
史琳, 许强辉. 稠油注空气开发技术的基础研究与应用[J]. 清华大学学报(自然科学版), 2022, 62(4): 722-734.
SHI Lin, XU Qianghui. Fundamental studies of air injection for heavy crude oil recovery and its applications. Journal of Tsinghua University(Science and Technology), 2022, 62(4): 722-734.
链接本文:  
http://jst.tsinghuajournals.com/CN/10.16511/j.cnki.qhdxxb.2022.25.010  或          http://jst.tsinghuajournals.com/CN/Y2022/V62/I4/722
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
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