In the mid-anaphase of Injecting Water Development OilField,In order to improving the recovery ratio,Controling Permeability profile of High Layer and Improving injected Pressure will be needed.

• 对注水开发的油田的中后期,迫切需要控制高吸水层位吸水量,提高注入压力,提高低吸水层的吸水量,达到改善吸水剖面,提高波及体积,以达到提高采收率的目的。