石油化工高等学校学报2025，Vol.38Issue(4)：51-57,7.DOI:10.12422/j.issn.1006-396X.2025.04.007
三维尺度物模下定向化学反应辅助SAGD增效研究
Study on Synergistic Effect of Directional Chemical Reaction-Assisted SAGD under Three-Dimensional Physical Simulationon
摘要
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.关键词
重油/产物分析/三维物理模拟/定向化学反应辅助SAGDKey words
Heavy oil/Product analysis/3D physical simulation/Directed chemical reaction assisted SAGD分类
能源科技引用本文复制引用
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):51-57,7.基金项目
国家自然科学基金企业创新发展联合基金重点项目(U22B20145) （U22B20145）
中国海洋石油集团有限公司科技攻关项目(CNOOCKJ145KJXMYF202101). （CNOOCKJ145KJXMYF202101）
