MATHEMATICAL MODELING OF DISPERSION OF ARGILLACEOUS MINERALS
IN MUDDED OIL RESERVOIR BEDS

M. G. Khramchenkov and A. N. Chekalin

UDC 532.546

The reasons for the technogenic decrease in the filtering 
capacity of oil reservoirs are considered. It is shown that the processes 
of transformation of the structure of argillaceous minerals are determining 
in this case. They lead to the dispersion of argillaceous aggregates 
and the segregation of smectite and mica components. The latter, being 
carried by a fluid flow and being mechanically fixed on the inhomogeneities 
of the pore channels, can form a reverse electroosmotic flow (retarding 
filtration) due to the high surface charge having no time to be compensated 
for. A mathematical model of the process has been constructed. The 
results of the calculations are presented.

Kazan' State University, 17 Universitetskaya Str., Kazan', 
42008, Russia; email: Maxim.Khramchenkov@ksu.ru. Translated from 
Inzhenerno-Fizicheskii Zhurnal, Vol. 76, No. 5, pp. 41-46, September-October, 
2003. Original article submitted October 23, 2002.