文献类型：期刊文献

英文题名：SEEPAGE PROPERTIES OF ROCK FRACTURES WITH POWER LAW LENGTH DISTRIBUTIONS

作者：Miao, Tongjun[1];Cheng, Sujun[1];Chen, Aimin[2];Xu, Yan[1];Yang, Guang[1];Wang, Jiguang[1];Yu, Boming[3]

第一作者：苗同军

通讯作者：Miao, TJ[1];Yu, BM[2]

机构：[1]Xinxiang Univ, Coll Phys & Elect Engn, Xinxiang 453003, Henan, Peoples R China;[2]Xinxiang Univ, Coll Chem & Chem Engn, Xinxiang 453003, Henan, Peoples R China;[3]Huazhong Univ Sci & Technol, Sch Phys, Wuhan 430074, Hubei, Peoples R China

第一机构：新乡学院物理与电子工程学院

通讯机构：[1]corresponding author), Xinxiang Univ, Coll Phys & Elect Engn, Xinxiang 453003, Henan, Peoples R China;[2]corresponding author), Huazhong Univ Sci & Technol, Sch Phys, Wuhan 430074, Hubei, Peoples R China.|[110717]新乡学院物理与电子工程学院;[11071]新乡学院;

年份：2019

卷号：27

期号：4

外文期刊名：FRACTALS-COMPLEX GEOMETRY PATTERNS AND SCALING IN NATURE AND SOCIETY

收录：;EI(收录号：20191606792601);Scopus(收录号：2-s2.0-85064189129);WOS:【SCI-EXPANDED(收录号:WOS:000475386700016)】；

基金：This work was supported by the National Natural Science Foundation of China (Grant Nos. U1704132 and 51876196), the Research Key Project of Science and Technology of Education Bureau of Henan Province, China (Grant No. 17A470013), the Science and Technology Project of Henan Province, China (Grant No. 182102310775), and the ninth group of key disciplines in Henan province (Grant No. 2018119).

语种：英文

外文关键词：Fracture; Permeability; Power Law; Fractal

摘要：Fractures with power law length distributions abound in nature such as carbonate oil and gas reservoirs, sandstone, hot dry rocks, etc. The fluid transport properties and morphology characterization of fracture networks have fascinated numerous researchers to investigate for several decades. In this work, the analytical models for fracture density and permeability are extended from fractal fracture network to general fracture network with power law length distributions. It is found that the fracture density is related to the power law exponents (alpha, n) and the area porosity phi of fracture network. Then, a permeability model for the fracture length distribution with general power law exponent alpha and the power law exponent n for fracture length versus aperture is proposed based on the well-known cubic law in individual fracture. The analytical expression for permeability of fractured networks is found to be a function of power law exponents (alpha, n), area porosity phi of fracture network, and the micro-structural parameters (maximum fracture length l(max), fracture azimuth theta(1) and fracture dip angle theta(2)). The present model may shed light on the mechanism of seepage in fracture networks with power law length distributions.