Study on numerical simulation of water control and stabilizing oil in extra-heavy oil reservoir with edge-bottom water——by taking Zheng 411 block of Shengli oilfield as an example

In view of the problems of increased water cut,declined oil production,and a large number of unproduced remaining oil after water invasion,by taking sandbody-1 of Zheng411 block as an example,the injection of chemical plugging agent in the oil-water boundary of horizontal well was put forward so as to build block partition measures to curb side bottom water invasion.Through reservoir numerical simulation,the injection layer,injection volume and injection mode of gel were optimized.Simulation plugging results show the water control and stabilizing oil effect is obvious,with decreased overall water cut,increased oil production and remarkable plugging effect.