Injection of supercritical CO2 in brine saturated sandstone: Pattern formation during salt precipitation

Salt precipitation during CO 2 storage—A review

“…In most of these cases, a dramatic injectivity reduction has been reported. Besides that, several experimental and numerical studies also have confirmed this phenomenon in the context of CO 2 storage (Muller et al, 2009;Ott et al, 2011;Pruess and Müller, 2009;Wang et al, 2010;Zeidouni et al, 2009a).…”

“…Therefore, to assess the injectivity loss properly, it is required to measure the combined effect of these two mechanisms (Ott et al, 2015;Roels et al, 2014). The review of the studies presented in Table 1 shows that only two sets of experimental data measuring the effective permeability are available (Ott et al, 2011(Ott et al, , 2015(Ott et al, , 2013Wang et al, 2010Wang et al, , 2009, while the rest of the studies has focused only on finding an alteration relationship between porosity and permeability.…”

Capillary-Driven Transport of Dissolved Salt to the Drying Zone During $$\hbox {CO}_{2}$$ CO 2 Injection in Homogeneous and Layered Porous Media

“…Whether salt precipitation will affect the injectivity depends on its distribution inside B Saskia M. Roels saskiaroels@hotmail.com 1 Delft University of Technology, Stevinweg 1, 2628 CN Delft, The Netherlands the porous medium. In case viscous forces dominate over capillary forces, salt precipitates locally, and the decrease in soil permeability due to salt precipitation can be counteracted by the increase in relative permeability caused by the increase in CO 2 saturation (Ott et al 2011;Roels et al 2014). When capillary forces are dominant over viscous forces, complete clogging can occur by accumulation of salt via continuous transport of brine by capillary forces toward to the dry zone around the injection well (Alkan et al 2010;Peysson 2012).…”

Capillary trapping of supercritical CO2in porous media at the pore scale

“…Non-destructive direct imaging approaches are attractive because they provide not only a detailed and unique description of the pore-space geometry but also fluid flow within them [14][15][16][17][18][19][20][21][22]. The X-ray microtomography has been also applied to investigation of CO 2 trapping in porous media [5,10,12,13].…”

“…Because the capillary trapping takes place for a CO 2 bubble at pore-scale, microscopic approaches are taken to investigate its mechanism [10][11][12][13]. X-ray computed microtomography has provided a tool for the nondestructive investigation of the three-dimensional microstructure of porous media.…”