油砂山油田2004年Ⅰ、Ⅱ断块分层系开发后,油田水驱控制、动用程度均提高明显。油田整体注采连通率高,水驱开发效果较好。油田自然递减、综合递减、含水上升率等指标均在可控范围内。2011年油田Ⅰ层系以Ⅵ-14为界,继续细分为Ⅰ上、Ⅰ下两套层系开发、Ⅰ层系老井产量稳定,压力恢复,开发效果向好。 After the development of the stratification system of block Ⅰ and block Ⅱ in 2004 in Oil Sands, the waterflood control and utilization degree of the oilfield all increased obviously. The overall field injection and production connectivity rate is high, waterflood development is better. The natural decline of the oilfield, the comprehensive decline, water cut rate and other indicators are within the controllable range. In 2011, the first member of the oilfield was divided by VI-14 as a boundary and continued to be subdivided into Ⅰ. Two sets of formations under Ⅰ were developed. The output of the older wells in the first layer was stable and the pressure was restored. The development effect was favorable.