When modelling the injectivityA measure of the rate at which a quantity of fluid can be injected into a well phenomena, the time scale of interest is the injectionThe process of using pressure to force fluids down wells period itself and generally, the space scale is limited to only the immediate environment surrounding the borehole. The main purpose of injectivityA measure of the rate at which a quantity of fluid can be injected into a well modelling is to assess if the physical and chemical properties of the wellManmade hole drilled into the earth to produce liquids or gases, or to allow the injection of fluids are not being affected by the injected CO2Carbon dioxide (Fig. 4-1). One area of current concern investigated by coupled modelling is the potential for porosityMeasure for the amount of pore space in a rock changes due to geochemical interactions (André et al., 20072007 - L. André, P. Audigane, M. Azaroual and A. MenjozNumerical modelling of fluid-rock chemical interactions at the supercritical CO2-liquid interface during supercritical CO2 injection into a carbonate reservoir, the Dogger aquifer (Paris Basin, France)see more; Bacci et al., 2009a; Bacci et al., 2011) and how this affects the injectivityA measure of the rate at which a quantity of fluid can be injected into a well (Gaus et al., 20082008 - I. Gaus, P. Audigane, L. André, J. Lions, N. Jacquemet, P. Durst, I. Czernichowski-Lauriol and M. AzaroualGeochemical and solute transport modelling for CO2 storage, what to expect from it?see more, Bacci et al., 2009b; Bacci et al., 2012; Bacci et al., 2013).
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Fig. 4-1: Main processes involved by CO2Carbon dioxide injectionThe process of using pressure to force fluids down wells, interactions between them and qualitative influence on wellManmade hole drilled into the earth to produce liquids or gases, or to allow the injectionThe process of using pressure to force fluids down wells of fluids injectivityA measure of the rate at which a quantity of fluid can be injected into a well (Gaus et al., 20082008 - I. Gaus, P. Audigane, L. André, J. Lions, N. Jacquemet, P. Durst, I. Czernichowski-Lauriol and M. AzaroualGeochemical and solute transport modelling for CO2 storage, what to expect from it?see more). |
A detailed knowledge of the reservoirA subsurface body of rock with sufficient porosity and permeability to store and transmit fluids and processes expected to occur near the vicinity of the injectionThe process of using pressure to force fluids down wells wellManmade hole drilled into the earth to produce liquids or gases, or to allow the injection of fluids during the injectionThe process of using pressure to force fluids down wells phase is required. An injectionThe process of using pressure to force fluids down wells of millions of tons CO2Carbon dioxide per year may cause thermal, hydraulic, and mechanical as wellManmade hole drilled into the earth to produce liquids or gases, or to allow the injection of fluids as chemical perturbations around the area of the injectionThe process of using pressure to force fluids down wells wellManmade hole drilled into the earth to produce liquids or gases, or to allow the injection of fluids (Gaus et al., 20082008 - I. Gaus, P. Audigane, L. André, J. Lions, N. Jacquemet, P. Durst, I. Czernichowski-Lauriol and M. AzaroualGeochemical and solute transport modelling for CO2 storage, what to expect from it?see more). Code TOUGHREACT (Xu et al., 20062006 - T. Xu, E. Sonnenthal, N. Spycher and K. PruessTOUGHREACT -a simulation program for non-isothermal multiphase reactive geochemical transport in variably saturated geologic media: applications for geothermal injectivity and CO2 geologic sequestrationsee more) has been applied to study the behaviour near the wellManmade hole drilled into the earth to produce liquids or gases, or to allow the injection of fluids during supercritical(CO2) Conditions where carbon dioxide has some characteristics of a gas and some of a liquid CO2Carbon dioxide injectionThe process of using pressure to force fluids down wells (André et al., 20072007 - L. André, P. Audigane, M. Azaroual and A. MenjozNumerical modelling of fluid-rock chemical interactions at the supercritical CO2-liquid interface during supercritical CO2 injection into a carbonate reservoir, the Dogger aquifer (Paris Basin, France)see more). The results demonstrated that the chemical processes vary accordingly to the distance from the injectionThe process of using pressure to force fluids down wells wellManmade hole drilled into the earth to produce liquids or gases, or to allow the injection of fluids. In the case of CO2Carbon dioxide injectionThe process of using pressure to force fluids down wells, the possible development of a dry-zone, centred round the injector (Regnault et al., 20052005 - O. Regnault, V. Lagneau, H. Catalette and H. SchneiderEtude expérimentale de la réactivité du CO2 supercritique vis-à-vis de phases minérales pures.Implications pour la séquestration géologique de CO2see more) has to be considered: salt precipitation in the near vicinity of the injector might induce a decrease in porosityMeasure for the amount of pore space in a rock and consequently affect wellManmade hole drilled into the earth to produce liquids or gases, or to allow the injection of fluids injectivityA measure of the rate at which a quantity of fluid can be injected into a well (André et al., 20072007 - L. André, P. Audigane, M. Azaroual and A. MenjozNumerical modelling of fluid-rock chemical interactions at the supercritical CO2-liquid interface during supercritical CO2 injection into a carbonate reservoir, the Dogger aquifer (Paris Basin, France)see more; Bacci et al., 2011; Bacci et al., 2013).