Method and device for the recovery of hydrocarbons from an oil reservoir

摘要

The invention relates to a method and a device for the recovery of hydrocarbons from an oil reservoir. The method comprises the steps of providing production water, injecting the production water into an oil reservoir, and collecting hydrocarbons displaced by the production water from the oil reservoir, wherein the salinity of the production water is lowered prior to or during injection into the oil reservoir by admixing low salinity water having a dissolved salt content lower than the production water.