| Dynamic simulation of immiscible displacement in fractured porous media | |
Qiu X(邱鑫)1,2 ; Lin M(林缅)1,2; Cao GH(曹高辉)1,2; Jiang WB(江文滨)1,2; Ji LL(姬莉莉)1,2
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| Corresponding Author | Lin, Mian([email protected]) |
| Source Publication | PHYSICS OF FLUIDS
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| 2024-05-01 | |
| Volume | 36Issue:5Pages:15 |
| ISSN | 1070-6631 |
| Abstract | Investigating immiscible displacement in fractured porous media is essential for understanding the two-phase flow behavior within pores and fractures. In this work, a three-dimensional pore-fracture network model was developed to address the influence of fracture on flow patterns and to characterize fracture-matrix crossflow under different flow conditions. Sensitivity studies at a wide range of viscosity ratios and capillary numbers underscored that fracture significantly influenced flow patterns in the capillary fingering zone. Fracture with an advantageous path effect in the displacement direction caused a shift in the boundary of capillary fingering zone toward an increase in capillary numbers. As fracture aperture decreased and aspect ratio increased, there was a discernible decline in the crossflow rate. When fracture aperture equaled average matrix throat diameter, fracture lose advantageous path effect in compact displacement zone but retained it in viscous fingering and capillary fingering zones. Distinct matrix-fracture crossflow development processes were observed in different zones: in cross zone, following displacement breakthrough, the crossflow underwent a "long-term" process to attain stability. Viscous fingering zone promptly achieved stability post-breakthrough, whereas both capillary fingering and compact displacement zones had already reached a stable state before breakthrough. Nonlinear variations in breakthrough saturation were observed in the cross zone between compact displacement and capillary fingering zones. The control process of immiscible displacement exhibited variability under different flow conditions: compact displacement zone was characterized by matrix dominance, viscous fingering zone was jointly controlled by matrix displacement and fracture-matrix crossflow, and capillary fingering zone was primarily governed by fracture-matrix crossflow. These findings enhance scholarly comprehension of immiscible displacement behavior in fractured porous media. |
| DOI | 10.1063/5.0204490 |
| Indexed By | SCI ; EI |
| Language | 英语 |
| WOS ID | WOS:001215875200006 |
| WOS Keyword | MODELING 2-PHASE FLOW ; PORE-SCALE ; NUMERICAL-SIMULATION ; CAPILLARY ; FLUID ; VOLUME ; WETTABILITY ; POROSITY ; FORCES |
| WOS Research Area | Mechanics ; Physics |
| WOS Subject | Mechanics ; Physics, Fluids & Plasmas |
| Funding Project | National Natural Science Foundation of China10.13039/501100001809[41690132] ; National Natural Science Foundation of China10.13039/501100001809[41872163] ; National Natural Science Foundation of China[XDA14010304] ; Strategic Priority Research Program of the Chinese Academy of Sciences |
| Funding Organization | National Natural Science Foundation of China10.13039/501100001809 ; National Natural Science Foundation of China ; Strategic Priority Research Program of the Chinese Academy of Sciences |
| Classification | 一类/力学重要期刊 |
| Ranking | 1 |
| Contributor | Lin, Mian |
| Citation statistics | |
| Document Type | 期刊论文 |
| Identifier | http://dspace.imech.ac.cn/handle/311007/95493 |
| Collection | 流固耦合系统力学重点实验室 |
| Affiliation | 1.Inst Mech, Chinese Acad Sci, Beijing 100190, Peoples R China; 2.Univ Chinese Acad Sci, Sch Engn Sci, Beijing 100049, Peoples R China |
| Recommended Citation GB/T 7714 | Qiu X,Lin M,Cao GH,et al. Dynamic simulation of immiscible displacement in fractured porous media[J]. PHYSICS OF FLUIDS,2024,36,5,:15.Rp_Au:Lin, Mian |
| APA | 邱鑫,林缅,曹高辉,江文滨,&姬莉莉.(2024).Dynamic simulation of immiscible displacement in fractured porous media.PHYSICS OF FLUIDS,36(5),15. |
| MLA | 邱鑫,et al."Dynamic simulation of immiscible displacement in fractured porous media".PHYSICS OF FLUIDS 36.5(2024):15. |
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