Integration of counter-current relative permeability in the simulation of CO2 injection into saline aquifers

Role of partial miscibility on pressure buildup due to constant rate injection of CO2 into closed and open brine aquifers

“…Of interest is that the dry-out zone can potentially lead to strong capillary forces where CO 2 will tend to reimbibe toward the well, increasing the amount of salt precipitated in the dry-out zone. Accounting for counter-current imbibition is found to be particularly important when seeking to estimate the quantity of CO 2 that becomes residually trapped after injection has ceased [Javaheri and Jessen, 2011]. But comparing results from models which ignored and included capillary pressure (and in turn, counter-current imbibition), Pruess and Muller [2009] found that inclusion of capillary pressure effects is unlikely to increase salt precipitation by more than a factor of order 1.1.…”

Theoretical comparison of two setups for capillary pressure measurement by centrifuge

“…The main difference between the two systems is the flow regime of the phases, where in the TEO system the fluids flow co-currently, while in the OEO system, the dominant flow regime is counter current. Considering these differences, the OEO installation is proposed for the calculation of counter-current relative permeabilities, which is essential in many disciplines such as migration of CO 2 in saline aquifers ( Javaheri and Jessen, 2011 ), and hydrocarbon production from naturally fractured reservoirs during secondary/tertiary recovery operations ( Aronofsky et al, 1958 ).…”

“…The relative movement of fluids with respect to each other creates two different regimes of flow called co-current flow (both fluids flow in the same direction) and counter-current flow (fluids flow in opposing directions). This flow regime is reported to be effective in the multiphase flow properties of rock such as relative permeability ( Javaheri and Jessen, 2011 ). In the counter-current flow regime, the relative permeabilities of fluids in the same porous media are often lower than co-current flow ( Haugen et al, 2015 ), which can be related to the reduction in the driving forces per unit volume of the rock ( Bentsen and Trivedi, 2013 ).…”

Theoretical Comparison of Two Setups for Capillary Pressure Measurement by Centrifuge

“…The main difference between the two systems is the flow regime of the phases, where in the TEO system the fluids flow co-currently, while in the OEO system, the dominant flow regime is counter current. Considering these differences, the OEO installation is proposed for the calculation of counter-current relative permeabilities, which is essential in many disciplines such as migration of CO 2 in saline aquifers (Javaheri and Jessen, 2011), and hydrocarbon production from naturally fractured reservoirs during secondary/tertiary recovery operations (Aronofsky et al, 1958).…”

“…The relative movement of fluids with respect to each other creates two different regimes of flow called co-current flow (both fluids flow in the same direction) and counter-current flow (fluids flow in opposing directions). This flow regime is reported to be effective in the multiphase flow properties of rock such as relative permeability (Javaheri and Jessen, 2011). In the counter-current flow regime, the relative permeabilities of fluids in the same porous media are often lower than co-current flow (Haugen et al, 2015), which can be related to the reduction in the driving forces per unit volume of the rock (Bentsen and Trivedi, 2013).…”