Effects of Velocity and Permeability on Tracer Dispersion in Porous Media

被引:9
作者
Yang, Yulong [1 ]
Liu, Tongjing [1 ]
Li, Yanyue [2 ]
Li, Yuqi [1 ]
You, Zhenjiang [3 ]
Zuo, Mengting [4 ]
Diwu, Pengxiang [4 ]
Wang, Rui [5 ]
Zhang, Xing [6 ]
Liang, Jinhui [7 ]
机构
[1] China Univ Petr, Unconvent Oil & Gas Inst, Beijing 102249, Peoples R China
[2] CNOOC China Ltd, Tianjin 300452, Peoples R China
[3] Univ Queensland, Sch Chem Engn, Brisbane, Qld 4072, Australia
[4] China Univ Petr, Coll Sci, Beijing 102249, Peoples R China
[5] SINOPEC, Shengli Oilfield Co, Petr Explorat & Dev Res Inst, Dongying 257015, Peoples R China
[6] SINOPEC, Shengli Oilfield Co, Res Inst Petr Engn, Dongying 257001, Peoples R China
[7] Tianjin Dagang Oilfield Shengda Technol Co Ltd, Tianjin 300280, Peoples R China
来源
APPLIED SCIENCES-BASEL | 2021年 / 11卷 / 10期
关键词
tracer dispersion; fluid velocity; core permeability; porous media; tracer concentration; COEFFICIENTS; SEGREGATION; PARTICLES; BEDS;
D O I
10.3390/app11104411
中图分类号
O6 [化学];
学科分类号
0703 ;
摘要
During micro-scale tracer flow in porous media, the permeability and fluid velocity significantly affect the fluid dispersion properties of the media. However, the relationships between the dispersion coefficient, permeability, and fluid velocity in core samples are still not clearly understood. Two sets of experiments were designed to study the effects of tracer fluid flow velocity and porous medium permeability on the dispersion phenomenon in a core environment, using natural and sand-filled cores, respectively. From experimental data-fitting by a mathematical model, the relationship between the dispersion coefficient, flow velocity, and permeability was identified, allowing the analysis of the underlying mechanism behind this phenomenon. The results show that a higher volumetric flow rate and lower permeability cause a delay in the tracer breakthrough time and an increase in the dispersion coefficient. The core experimental results show that the dispersion coefficient is negatively correlated with the permeability and positively correlated with the superficial velocity. The corresponding regression equations indicate linear relations between the dispersion coefficient, core permeability, and fluid velocity, resulting from the micron scale of grain diameters in cores. The combination of high velocity and low permeability yields a large dispersion coefficient. The effects of latitudinal dispersion in porous media cannot be ignored in low-permeability cores or formations. These findings can help to improve the understanding of tracer flow in porous media, the design of injection parameters, and the interpretation of tracer concentration distribution in inter-well tracer tests.
引用
收藏
页数:14
相关论文
共 38 条
[1]  
[Anonymous], ADV GEOSCI, DOI [10.5194/adgeo-45-185-2018, DOI 10.5194/ADGEO-45-185-2018]
[2]   Solute Reactive Tracers for Hydrogeological Applications: A Short Review and Future Prospects [J].
Cao, Viet ;
Schaffer, Mario ;
Taherdangkoo, Reza ;
Licha, Tobias .
WATER, 2020, 12 (03)
[3]   A critical review of dispersion in packed beds [J].
Delgado, JMPQ .
HEAT AND MASS TRANSFER, 2006, 42 (04) :279-310
[4]   MIXING OF FLUIDS FLOWING THROUGH BEDS OF PACKED SOLIDS [J].
EBACH, EA ;
WHITE, RR .
AICHE JOURNAL, 1958, 4 (02) :161-169
[5]  
Fan Y., 1988, ACTA PETROLEI SINICA, V1, P75
[6]   Segregation and dispersion of a binary system of particles in a fluidized bed [J].
Galvin, K. P. ;
Swann, R. ;
Ramirez, W. F. .
AICHE JOURNAL, 2006, 52 (10) :3401-3410
[7]   DISPERSION IN TRACER FLOW IN FRACTURED GEOTHERMAL SYSTEMS [J].
HORNE, RN ;
RODRIGUEZ, F .
GEOPHYSICAL RESEARCH LETTERS, 1983, 10 (04) :289-292
[8]  
Hua F., 2010, THESIS HEFEI U TECHN
[9]  
Huang K.L., 1991, HYDROGEOL ENG GEO, V03
[10]  
Hussain F., 2010, COMP METHODS DRAINAG