Unstable waterflooding method Applied to the bed series of NG3-4 in the Pilot in Gudao oil field

摘要

On the basis of geological model of reservoir established by intensive reservoir-depiction technique, by the mechanism study and experiment on unstable waterflooding, we select waterflooding's time style, period and variation range of the quantity of water injected. The unstable waterfloding method was applied at the stage of high water content, and has brought a good result.