Characterization of stress-dependent single-phase and multiphase fluid transport in fractured geo-materials is essential for a wide range applications, including CO2 sequestration, energy storage, geo-energy extraction. However, pivotal studies on capillarity flow deformable rock fractures are surprisingly sparse. In this study, we initially investigated the hydro-mechanical properties an intac...

Magnetic permeability data of cobalt ferrite and carbonyl iron suspensions are discussed. Using an induction method, the relative differential permeability, mr;dif ; was measured as a function of the internal magnetic field for different volume fractions of the solid phase. In the case of cobalt ferrite suspensions, the mr;dif H curve was obtained for a first increasing ramp of magnetic field (...

Decline curve analysis models are frequently used but still have many limitations. Approaches of decline curve analysis used for naturally-fractured reservoirs developed by water flooding have been few. To this end, a decline analysis model derived based on fluid flow mechanisms was proposed and used to analyze the oil production data from naturallyfractured reservoirs developed by water floodi...

Capillary pressure and relative permeability behavior of unconsolidated sands are capillary pressure behavior of deepwater turbidites and described differences present in six facies. Honarpour et al. (1986) discussed several models for estimating relative permeability between end-point measurements and documented empirical exponents used by other workers to describe flow behavior associated wit...

Abstract A sets of sand column experiments were conducted to investigate the transport and deposition of colloids in water-saturated porous media, and the mechanism of the permeability reduced by transport and deposition of colloids are discussed. The research results show that the breakthrough curves of colloid transport in water-bearing media presented as three stages: “not-yet-breakthrough”,...

We use a three-dimensional mixed-wet random network model representing Berea sandstone to compute displacement paths and relative permeabilities for water alternating gas (WAG) flooding. First we reproduce cycles of water and gas injection observed in previously published experimental studies. We predict the measured oil, water and gas relative permeabilities accurately. We discuss the hysteres...

In this paper we discuss the numerical modelling of two inverse problems in porous media flow. In the first problem, we determine the soil parameters that occur in the retention and hydraulic permeability curves of the Van Genuchten ansatz for Richard’s equation. In the second problem we determine the hydraulic permeability, longitudinal dispersivity and adsorption isotherms using the measureme...

PURPOSE To investigate the sensitivity of diffusion-MR signal to microstructural change in muscle tissue associated with pathology, and recommend optimal acquisition parameters. METHODS We employ Monte-Carlo simulation of diffusing spins in hierarchical tissue to generate synthetic diffusion-weighted signal curves over a wide range of scan parameters. Curves are analyzed using entropy-a measu...