Experimental Investigation of Salt Precipitation during Gas Injection into a Depleted Gas Reservoir

Water vaporization and its induced damage around the wellbore are important issues with a wide application. This<br>phenomenon could be observed wherever dry gas is injected into gas and oil reservoirs in presence of connate water. Gas<br>injection for EOR, pressure maintenance or storage purposes and carbon dioxide sequestrations in aquifers are examples where<br>it could happen. There are two counteracting factors existing in vaporization phenomenon, water saturation decrease and<br>induced permeability impairment by salt precipitation in the porous medium.