Fractal Analysis of Permeability of Unsaturated Fractured Rocks

被引：2
|
作者：
Jiang, Guoping [1 ]
Shi, Wei [2 ]
Huang, Lili [2 ]
机构：
[1] Guangzhou Univ, Earthquake Engn Res Test Ctr, Guangzhou 510405, Guangdong, Peoples R China
[2] Ningbo Polytech, Ningbo 315800, Zhejiang, Peoples R China
来源：
SCIENTIFIC WORLD JOURNAL | 2013年
关键词：
POROUS-MEDIA; HEAT-TRANSFER; MODEL; GEOMETRY;
D O I：
10.1155/2013/490320
中图分类号：
O [数理科学和化学]; P [天文学、地球科学]; Q [生物科学]; N [自然科学总论];
学科分类号：
07 ; 0710 ; 09 ;
摘要：
A physical conceptual model for water retention in fractured rocks is derived while taking into account the effect of pore size distribution and tortuosity of capillaries. The formula of calculating relative hydraulic conductivity of fractured rock is given based on fractal theory. It is an issue to choose an appropriate capillary pressure-saturation curve in the research of unsaturated fractured mass. The geometric pattern of the fracture bulk is described based on the fractal distribution of tortuosity. The resulting water content expression is then used to estimate the unsaturated hydraulic conductivity of the fractured medium based on the well-known model of Burdine. It is found that for large enough ranges of fracture apertures the new constitutive model converges to the empirical Brooks-Corey model.
引用
收藏
页数：5
相关论文
共 50 条
  • [21] PERMEABILITY ANALYSIS OF FRACTURED-VUGGY CARBONATE RESERVOIRS BASED ON FRACTAL THEORY
    Su, Xin
    Ren, Bo
    Huang, Zhaoqin
    [J]. FRACTALS-COMPLEX GEOMETRY PATTERNS AND SCALING IN NATURE AND SOCIETY, 2022, 30 (07)
  • [22] SURFACE MEASUREMENT AND FRACTAL CHARACTERIZATION OF NATURALLY FRACTURED ROCKS
    POON, CY
    SAYLES, RS
    JONES, TA
    [J]. JOURNAL OF PHYSICS D-APPLIED PHYSICS, 1992, 25 (08) : 1269 - 1275
  • [23] A constitutive model for water flow in unsaturated fractured rocks
    Guarracino, Luis
    Quintana, Fernando
    [J]. HYDROLOGICAL PROCESSES, 2009, 23 (05) : 697 - 701
  • [24] Critical stress-related permeability in fractured rocks
    Rogers, SF
    [J]. FRACTURE AND IN-SITU STRESS CHARACTERIZATION OF HYDROCARBON RESERVOIRS, 2003, 209 : 7 - 16
  • [25] Research on the geometric parameters influencing on the permeability of the fractured rocks
    Liu, Xianshan
    [J]. ROCK CHARACTERISATION, MODELLING AND ENGINEERING DESIGN METHODS, 2013, : 505 - 508
  • [26] A CONTINUUM APPROACH FOR ESTIMATING PERMEABILITY IN NATURALLY FRACTURED ROCKS
    LEE, CH
    DENG, BW
    CHANG, JL
    [J]. ENGINEERING GEOLOGY, 1995, 39 (1-2) : 71 - 85
  • [27] The permeability of fractured rocks in pressurised volcanic and geothermal systems
    Lamur, A.
    Kendrick, J. E.
    Eggertsson, G. H.
    Wall, R. J.
    Ashworth, J. D.
    Lavallee, Y.
    [J]. SCIENTIFIC REPORTS, 2017, 7
  • [28] Determining the permeability of fractured rocks based on joint mapping
    Zhang, FM
    Zhou, ZF
    Huang, YQ
    Chen, ZY
    [J]. GROUND WATER, 2004, 42 (04) : 509 - 515
  • [29] The permeability of fractured rocks in pressurised volcanic and geothermal systems
    A. Lamur
    J. E. Kendrick
    G. H. Eggertsson
    R. J. Wall
    J. D. Ashworth
    Y. Lavallée
    [J]. Scientific Reports, 7
  • [30] Bed-normal permeability in fractured sedimentary rocks
    Doolin, DM
    Mauldon, M
    [J]. ROCK MECHANICS TOOLS AND TECHNIQUES, VOLS 1 AND 2, 1996, : 1793 - 1799
12345