RT Journal Article
ID 01c5433f6193b0dd
A1 Wang, Fuyong 
A1 Jiao, Liang 
A1 Liu, Zhichao 
A1 Tan, Xiqun 
A1 Wang, Congle 
A1 Gao, Jian 
T1 FRACTAL ANALYSIS OF PORE STRUCTURES IN LOW PERMEABILITY SANDSTONES USING MERCURY INTRUSION POROSIMETRY
JF Journal of Porous Media
JO JPM
YR 2018
FD 2018-10-18
VO 21
IS 11
SP 1097
OP 1119
K1 low permeability sandstone
K1 pore structure
K1 fractal theory
K1 mercury intrusion capillary pressure (MICP)
K1 permeability
AB Pore structures of low permeability sandstones collected from the Yanchang Formation in the Ordos Basin of China
were analyzed using mercury intrusion porosimetry (MIP) with fractal theory. Six different fractal models were applied
to calculate the fractal dimension from mercury intrusion capillary pressure (MICP), and the relationships between
the calculated fractal dimensions and the sandstone petrophysical properties were analyzed. The results show that low permeability sandstones have obvious fractal characteristics, and the fractal dimensions calculated from the 3D capillary tube model have the strongest correlations with petrophysical properties and are most suitable for analyzing pore structures. The fractal dimensions of all the pores have strong and positive correlations with the fractal dimensions of small pores but have no obvious correlation with the fractal dimensions of large pores. Compared with the modified Winland model, fractal permeability models can accurately predict the permeability of low permeability sandstones.

PB Begell House
LK https://www.dl.begellhouse.com/journals/49dcde6d4c0809db,289cf53b0214cfbb,01c5433f6193b0dd.html