A model for porosity reduction in quartzite reservoirs by quartz cementation

Experimental investigation of the effect of dissolution on sandstone permeability, porosity, and reactive surface area

“…Kieffer et al (1999). The solid and dashed curves correspond to predictions made using geometric models provided by Canals and Meunier (1995) and using Eqn. 8, respectively, assuming a 250 quartz grain diameter and closest sphere packing leading to ϭ 177.7 cm Ϫ1 at ϭ25.95%.…”

“…Canals and Meunier (1995) proposed a more elaborate geometric model based on the assumption that the porous media is comprised of a well-sorted close-packed array of spheres that intergrow as porosity decreases. A review of the Canals and Meunier (1995) model is provided by Kieffer et al (1999), where a close correspondence was found between this model and experimentally measured total quartz-water interfacial surface areas of Fontainebleau sandstone cores.…”

“…Surface areas of porous media are often approximated using simple geometrical models involving the ordered arrangement or packing of spheres (Bear, 1972;Canals and Meunier, 1995). For example, the surface area of a random arrangement of spherical pores can be approximated recalling that the volume of a sphere is proportional to its diameter cubed, and its surface area is proportional to its diameter squared.…”

“…Nevertheless, because rock permeability and surface areas are properties that cannot, in most cases, be readily measured in natural systems, they are commonly approximated through phenomenological and/or empirical relations (see Lasaga, 1984;Ortoleva et al, 1987;Lichtner, 1988Lichtner, , 1996Sevougian et al, 1992;Bryant et al, 1993a;Steefel and Lasaga, 1994;Oelkers et al, 1996;Steefel and MacQuarrie, 1996). For this reason, many studies have been aimed at developing algorithms, based on idealized geometries, to predict permeability and surface areas of natural porous materials (see for example Kozeny, 1927;Carman, 1937;Berryman and Blair, 1986;Doyen, 1988;Bryant and Blunt, 1992;Bryant et al, 1993a,b;Schwartz et al, 1993;Hürlimann et al, 1994;Panda and Lake, 1994;Canals and Meunier, 1995;Auzerais et al, 1996).…”

Fractal analysis in particle dissolution: a review

“…However, it is difficult to measure the absolute size of the reactive surface area in practice, because the dissolution rate of the elements in samples might change during the dissolving process due to the variation of the dissolution environment, such as the pH value and saturation. That is why a number of models that described the dissolution process were based on the total surface area measured by the gas adsorption (Brunauer et al 1938) or the geometrical constructions (Lichtner 1988, Canals and Meunier 1995, Le Gallo et al 1998, Colón et al 2004, Emmanuel and Berkowitz 2005 or other methods (Fredrich et al 1993, Shiraki et al 2000, Lüttge et al 2003, Noiriel et al 2004, such as vertical scanning interferometry, atomic force microscopy, laser confocal microscopy, or X-ray tomography.…”