The influence of temperature on wettability alteration during CO(2) storage in
saline aquifers
#MMPMIDC7321657
Abbaszadeh M
; Shariatipour S
; Ifelebuegu A
?-/-? 2020[Aug]; 99
(?): 103101
PMIDC7321657
show ga
The wettability of a formation is defined as the tendency of one fluid to spread
on a surface in competition with other fluids which are also in contact with it.
However, the impact of temperature on wettability in an aquifer and the
modification of relative permeability curves based on the temperature variation
in aquifers is not well covered in the literature. This study redresses this
dearth of information by investigating the impact of temperature on wettability
distribution in a reservoir and updating the relative permeability curves based
on its temperature propagation. The impact of the latter is studied in relation
to the solubility of CO(2) injected into an aquifer using the numerical methods
(i.e. ECLIPSE). If the CO(2) injected has a temperature higher than the formation
geothermal temperature, it can change the wettability of the formation further to
a more CO(2) wet condition. This increases the risk of leakage and also changes
the relative permeability curves as the CO(2) moves through the reservoir, a
situation that needs to be considered in reservoir simulations. The results show
that updating and modifying the relative permeability curves with temperature
variation in an aquifer can increase the amount of CO(2) dissolution there.
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