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多孔介质期刊
影响因子: 1.49 5年影响因子: 1.159 SJR: 0.43 SNIP: 0.671 CiteScore™: 1.58

ISSN 打印: 1091-028X
ISSN 在线: 1934-0508

多孔介质期刊

DOI: 10.1615/JPorMedia.v17.i12.10
pages 1031-1044

A COMPREHENSIVE ANALYSIS OF THE SEEPAGE CHARACTERS OF NON-NEWTONIAN FLUIDS IN FRACTAL POROUS MEDIA

Shiming Zhang
School of Petroleum Engineering, China University of Petroleum, Beijing, China Geology Science Research Institute, Shengli Oil Field Lt. Com., Sinopec, China
Yeheng Sun
School of Petroleum Engineering, China University of Petroleum, Beijing, China Geology Science Research Institute, Shengli Oil Field Lt. Com., Sinopec, China
Xiaodong Wu
School of Petroleum Engineering, China University of Petroleum, Beijing, China
Tongjun Miao
School of Physics, Huazhong University of Science and Technology, Wuhan 430074, China
Hongjing Gao
School of Physics, Huazhong University of Science and Technology, Wuhan 430074, China
Fuquan Song
School of Petroleum and Chemical Engineering, Zhejiang Ocean University, Zhoushan, Zhejiang, China
Boming Yu
Huazhong University of Sci. & Tech.

ABSTRACT

Study of non-Newtonian fluid flow characteristics in porous media has been one of the focuses in the field of transport in porous media. In this paper, a comprehensive study of nonlinear seepage in fractal porous media is performed, and the analytical expressions for the starting pressure gradient of Bingham fluids and power-law fluids as well as the relative permeability of power-law fluids in porous media, are obtained with the effect of capillary pressure included. Each parameter in the proposed models has clear physical meaning. The relationships among the starting pressure gradient, permeability, and relative permeability versus porosity, particle diameters, and wetting phase saturation are obtained, and good agreement between the model predictions and the available experimental data is obtained; the validity ofthe proposed models is thus verified.


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