Shengtuo oil field has been developed under water flooding for 36 years.Now it is at super-high water-cut stage with 95% of composite water cut and its remaining oil is scatteredly distributed.

• 胜坨油田已注水开发36年,处于综合含水率达95%25的特高含水期,剩余油分布零散,提高采收率难度较大。