Permeability decrease in sandstone reservoirs by fluid injection

Scale effect on porosity and permeability: Kinetics, model, and correlation

“…The best results were obtained by the sinusoidal capillary tubes model, because the "constriction factor" considered in this model could be adjusted for best representation of the experimental data. This model attempts to simulate the pore throat narrowing and/or jamming phenomena, referred to as the "gate or valve effect" by Chang and Civan (1997) and Ochi and Vernoux (1998). However, Figure 6 of Reis and Acock (1994) indicates that even the sinusoidal tubes model could not accurately represent the experimental data.…”

“…This process is not considered here, because Gruesbeck and Collins (19821, Liu and Civan (19961, and Civan (2000a) have adequately formulated the porosity and permeability variation by fine particles deposition in porous media. These models consider the "gate or valve effect" (Ohen andCivan, 1993, Chang andCivan, 1997;Ochi and Vernoux, 1998) of the pore throats. As pore throats are plugged by solid precipitate, the pores are isolated from each other and the permeability rapidly diminishes.…”

Flow-through experiments on the interaction of sandstone with Ba-rich fluids at geothermal conditions

“…Investigations on formation damages due to particle redistribution in sandstone reservoirs were performed and the existence of a critical flow rate was confirmed by Ochi and Vernoux (1998). Rosenbrand et al (2015) attributed the reduction of the permeability of reacted sandstones to the migration of fine particles, depending on the salinity of the percolating fluid and temperature.…”

Induced migration of fines during waterflooding in communicating layer-cake reservoirs

“…These kinetics-based models exhibited a delayed response to an abrupt velocity increase or salinity decrease, which disagreed with the almost instantaneous response in the experiments (Mungan, 1965;Mohan et al, 1993;Ochi and Vernoux, 1998). The maximum retention model, on the other hand, exhibited response without delay Lemon et al, 2011) and was chosen for the current study.…”