石油化工高等学校学报 ›› 2025, Vol. 38 ›› Issue (4): 51-57.DOI: 10.12422/j.issn.1006-396X.2025.04.007

• 石油工程 • 上一篇    下一篇

三维尺度物模下定向化学反应辅助SAGD增效研究

林涛(), 王乔波, 宋宏志, 袁钟涛, 李田靓   

  1. 中海油田服务股份有限公司 油田生产研究院,天津 300459
  • 收稿日期:2024-06-04 修回日期:2024-07-09 出版日期:2025-08-25 发布日期:2025-07-24
  • 作者简介:林涛(1983⁃),男,硕士,高级工程师,从事海上油田稠油热采工艺技术方面的研究;E⁃mail: lintaodqpi@163.com
  • 基金资助:
    国家自然科学基金企业创新发展联合基金重点项目(U22B20145);中国海洋石油集团有限公司科技攻关项目(CNOOC KJ145 KJXM YF 202101)

Study on Synergistic Effect of Directional Chemical Reaction⁃Assisted SAGD under Three⁃Dimensional Physical Simulationon

Tao LIN(), Qiaobo WANG, Hongzhi SONG, Zhongtao YUAN, Tianliang LI   

  1. Oilfield Optimization R & D Institute COSL,Tianjin 300459,China
  • Received:2024-06-04 Revised:2024-07-09 Published:2025-08-25 Online:2025-07-24

摘要:

在SAGD(蒸汽辅助重力驱油技术)热采重油的过程中,主要采用常规热采锅炉生热。以蒸汽作为携热介质时常面临见水时间快、热利用率低等问题,导致采收率低。通过改变生热方式,在保障热量注入的前提下减少水量注入,对热采具有重要意义。基于定向化学反应产物分析,结合三维尺度大型物理模拟实验,验证了定向化学反应的可行性,明确了定向化学反应辅助SAGD的温度场的扩展规律,分析评价了不同开采阶段的生产曲线特征。结果表明,在定向化学反应的生成物中,液态流体主要为C5-C20,气态物质以CH4和CO2为主;利用定向化学反应产物辅助SAGD开发,最终采出程度为76.59%,比单纯SAGD提高了19.99个百分点。研究进一步验证了定向化学反应辅助SAGD增效技术的作用机理,为现场应用提供了理论依据和技术支撑。

关键词: 重油, 产物分析, 三维物理模拟, 定向化学反应辅助SAGD

Abstract:

In the process of heavy oil thermal recovery using SAGD (Steam?Assisted Gravity Drainage) technology, conventional thermal recovery boilers are mainly used for heat generation. When steam is used as the heat?carrying medium, problems such as a short water breakthrough time and low heat utilization efficiency are often encountered, resulting in low oil recovery. Changing the heat generation method to reduce water injection while ensuring heat injection is of great significance for thermal recovery.Based on the analysis of directional chemical reaction products and combined with large?scale three?dimensional physical simulation experiments, the feasibility of directional chemical reactions was verified, the expansion law of the temperature field in directional chemical reaction?assisted SAGD was clarified, and the characteristics of production curves at different mining stages were analyzed and evaluated.The results show that among the products of the directional chemical reaction, the liquid fluid is mainly C5-C20, and the gaseous substances are mainly CH4 and CO2; the final recovery degree of SAGD development assisted by directional chemical reaction products is 76.59%, which is 19.99 percentage points higher than that of pure SAGD. The research further verifies the mechanism of the directional chemical reaction?assisted SAGD efficiency?increasing technology, providing a theoretical basis and technical support for field applications.

Key words: Heavy oil, Product analysis, 3D physical simulation, Directed chemical reaction assisted SAGD

中图分类号: 

引用本文

林涛, 王乔波, 宋宏志, 袁钟涛, 李田靓. 三维尺度物模下定向化学反应辅助SAGD增效研究[J]. 石油化工高等学校学报, 2025, 38(4): 51-57.

Tao LIN, Qiaobo WANG, Hongzhi SONG, Zhongtao YUAN, Tianliang LI. Study on Synergistic Effect of Directional Chemical Reaction⁃Assisted SAGD under Three⁃Dimensional Physical Simulationon[J]. Journal of Petrochemical Universities, 2025, 38(4): 51-57.

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