Differential effective medium (DEM) theory is applied here to the problem of modeling physical properties of poroelastic media that are partially saturated with liquid. Typical fluid saturants are air and water, or gas and oil. If the liquid and gas saturants are homogeneously mixed, then we say the medium is partially saturated. If the liquid and gas saturants are poorly mixed, so each constit...

In this paper we study the innltration of DNAPL in a porous medium containing a single low-permeable lens. Our aim is to determine whether DNAPL innltrates into the lens, or not. A key role is played by the capillary pressure: DNAPL cannot innltrate into the lens unless the capillary pressure exceeds the entry pressure of the lens. In the model this is reeected by an interface condition for the...

In this paper, the unsteady flow of non-Newtonian fluid through a porous medium when an external magnetic field is applied is investigated. The non linear equation of motion is transformed to a similarity differential equation which is solved using the method of successive approximations. The rheological effects are shown and discussed on the velocity profile in terms of rheological parameter o...

In this work, the precipitation and re-dissolution of asphaltenes were studied for an Iranian relatively heavy crude oil. A series of experiments were designed and carried out to quantitatively examine the reversibility of asphaltenes precipitation upon the change in the solvent concentration along with the temperature. n-Heptane was used as the precipitant, and a temperature range of 30 to...

In this paper, the effect of consolidation soil structure on fractality fluid flow was evaluated. The equation fractal law in porous medium under two-phase, fully fluid-saturated determined. Given all simplifications, as well undoubted importance nature medium, which primarily determine possible processes both and based results studies, we can conclude that a homogeneous reservoir at given para...