Research on the distribution characteristics of a novel oil displacement system for conformance control in microporous media
文献类型：期刊论文
| 作者 | Sun, Zhe1,4; Wang, Xiujun1,4; Shen WJ(沈伟军)2,3 |
| 刊名 | FUEL
 |
| 出版日期 | 2025-09-15 |
| 卷号 | 396页码:15 |
| 关键词 | A novel hydrogel system Conformance control technology Seepage behavior Spatial distribution characteristics Mechanism analysis |
| ISSN号 | 0016-2361 |
| DOI | 10.1016/j.fuel.2025.135352 |
| 通讯作者 | Sun, Zhe(670980897@qq.com) |
| 英文摘要 | This study aims to investigate the distribution characteristics of a novel hydrogel system (HDS) for in-depth conformance control. Through a combination of static gelation experiments and core flow experiments, the thickening performance and seepage characteristics in porous media of the novel HDS system was studied. Considering the viscosity changes and dynamic chain extension reactions of the HDS system, the Darcy-Brinkman-Stokes (DBS) micro-continuum approach was applied to develop a multi-physical mathematical model for the migration of HDS system in a pore-throat network. Therefore, a 4-meter core experiment and multi-scale numerical modeling were conducted to analyze the dynamic chain extension efficiency and spatial distribution characteristics of the HDS system. Additionally, machine learning techniques were used to define the dynamic chain extension reaction index (RI) and identify its critical threshold, exploring the effects of varying injection parameters, solution concentrations, and permeabilities on the chain extension behavior. Results show that HDS molecular chains form aggregated structures that evolve into a unique spatial network. As the network structure becomes denser, the viscosity of HDS system increases rapidly. As the core permeability increases, the core throat size enlarges, and the compatibility between the HDS system molecular aggregates and the pore throat improves. HDS system shows good transmission performance during migration in the long core. Numerical simulations and machine learning techniques were employed to define the dynamic chain extension RI, examining how RI changes under varying injection parameters, solution concentrations, and permeabilities. As permeability, HDS system concentration, and injection rate increase, the RI also increases. The results are presented in the RI graph, offering theoretical insights for deep profile adjustment and the development of reagent systems. |
| 分类号 | 一类 |
| WOS关键词 | LINKED POLYMER-SOLUTION ; MECHANISMS |
| 资助项目 | National Natural Science Foundation of China[52404056] |
| WOS研究方向 | Energy & Fuels ; Engineering |
| 语种 | 英语 |
| WOS记录号 | WOS:001472305300001 |
| 资助机构 | National Natural Science Foundation of China |
| 其他责任者 | Sun, Zhe |
| 源URL | [http://dspace.imech.ac.cn/handle/311007/101049]  |
| 专题 | 力学研究所_流固耦合系统力学重点实验室(2012-) |
| 作者单位 | 1.State Key Lab Offshore Oil & Gas Exploitat, Beijing 100028, Peoples R China; 2.Univ Chinese Acad Sci, Sch Engn Sci, Beijing 100049, Peoples R China 3.Chinese Acad Sci, Key Lab Mech Fluid Solid Coupling Syst, Inst Mech, Beijing 100190, Peoples R China; 4.China Natl Offshore Oil Corp CNOOC Res Inst Co Ltd, Beijing 100028, Peoples R China; |
| 推荐引用方式 GB/T 7714 | Sun, Zhe,Wang, Xiujun,Shen WJ. Research on the distribution characteristics of a novel oil displacement system for conformance control in microporous media[J]. FUEL,2025,396:15. |
| APA | Sun, Zhe,Wang, Xiujun,&沈伟军.(2025).Research on the distribution characteristics of a novel oil displacement system for conformance control in microporous media.FUEL,396,15. |
| MLA | Sun, Zhe,et al."Research on the distribution characteristics of a novel oil displacement system for conformance control in microporous media".FUEL 396(2025):15. |
入库方式： OAI收割
来源：力学研究所
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