SYSTEM AND METHOD FOR TREATING PRODUCED WATER HAVING A FLASH VAPORIZATION SYSTEM FOR REMOVING DISSOLVED GASES FROM PRODUCED WATER

摘要

An oil recovery process includes recovering an oil-water mixture from an oil-bearingformation and separating the produced water from the oil-water mixture. Theproduced waterincludes dissolved gases and the method includes heating and pressurizing theproduced water.After the produced water is heated and pressurized, it is flash vaporizedthrough a lesserpressure which produces a vapor and residual produced water. The flashvaporization of theproduced water evaporates dissolved gases and the dissolved gases are ventedaway with thevapor.