文献类型：期刊文献

英文题名：A FRACTAL PERMEABILITY MODEL FOR POROUS-FRACTURE MEDIA WITH THE TRANSFER OF FLUIDS FROM POROUS MATRIX TO FRACTURE

作者：Miao, Tongjun[1];Chen, Aimin[2];Xu, Yan[1];Cheng, Sujun[1];Yu, Boating[3]

第一作者：苗同军

通讯作者：Miao, TJ[1];Yu, BAT[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：6

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

收录：;EI(收录号：20193807459529);Scopus(收录号：2-s2.0-85072334564);WOS:【SCI-EXPANDED(收录号:WOS:000492045300021)】；

基金：This work was supported by the National Natural Science Foundations of China (Grant Nos. U1704132 and 51876196), the Research Key Project of Science and Technology of Education Bureau of Henan Province, China (Grant Nos. 17A470013 and 14A140030), and the ninth group of key disciplines in Henan province (Grant No. 2018119).

语种：英文

外文关键词：Fracture; Permeability; Transfer; Fractal; Porous Media

摘要：The transfer of fluids from porous matrix to fracture is a key issue to accurately predict the fluid flow behavior in porous-fracture media. In this work, to take into account the transfer of fluids, the analytical model of dimensionless permeability is proposed based on the fractal geometry theory for porous media. The proposed model is expressed as a function of microstructural parameters of the porous matrix and fracture, such as the pore area fractal dimension D-p, fractal dimension D-T for tortuosity of tortuous capillaries, the ratio delta of the maximum pore size in porous matrix to fracture aperture, as well as the ratio Delta p(m)/Delta p(f) of the pressure difference along the fracture to that along the porous matrix layers. The model reveals that the ratios Delta p(m)/Delta p(f) Op f have significant influences on the permeability contribution from the porous matrix to the seepage behavior of the fracture. While the contribution of porosity of leak-wall porous surface of the fracture to the permeability is less than 10%. The present results may provide an important theoretical foundation for exploration of petroleum, gas and geothermal energy extraction systems.