本文研究了试验水平井井区的油藏地质特征、油层物性和堵水潜力,结合生产动态、水平段渗透率和含水饱和度参数、井身轨迹和油水界面三方面,分析了该疏松砂岩油藏水平井的出水段。根据油藏条件与出水情况选择乳液聚合物冻胶体系进行堵水。该体系成胶实验表明成胶时间6~10h,冻胶强度大于20000mPa·s。矿场注入设计三个段塞,现场实施后取得了显著的降水增油效果。 In this paper, the reservoir geological characteristics, reservoir physical properties and water blocking potential in the horizontal well are studied. Combined with the production dynamics, horizontal section permeability and water saturation parameters, wellbore trajectory and oil-water interface, this paper analyzes the characteristics of the unconsolidated sandstone oil Reservoir horizontal well water section. According to the reservoir conditions and the situation of water emulsion polymer gel system to select water. The system of plastic experiments show that the gel time 6 ~ 10h, jelly strength greater than 20000mPa · s. Injecting the design of three slugs, after the scene has achieved significant effect of precipitation and oil.