油砂山油田是青海油区的一个老油田,自1956年投入生产以来,已开发生产57年,累计生产原油166.75万吨,通过对油田近年来的注水开发指标分析,认为油田目前注采系统还不能完全适应油田油砂体的分布状况,油水井井距偏大,油水井数比偏大,多向受效率低,油水井连通性差,水驱控制程度低等矛盾。有必要通过调整方案完善和优化油田注采系统,提高储量动用程度,提高注水利用率,改善油田开发效果,提高采油速度及最终采收率,实现效益开发。 Oil Sands Oilfield is an old oilfield in Qinghai Oilfield. Since it was put into production in 1956, it has been developed and produced for 57 years and produced a total of 1,667,500 tons of crude oil. Based on the analysis of oilfield development indicators in recent years, it is concluded that the current injection and recovery system Can not fully adapt to the distribution of oil sands in oilfields, the large well spacing of oil and water wells, large oil / water well ratios, low multi-directional efficiency, poor oil-water well connectivity and low water-flooding control. It is necessary to improve and optimize the oil and gas injection and production system by adjusting the scheme, increase the utilization rate of reserves, improve the water injection utilization rate, improve the oilfield development effect, increase the oil recovery rate and the ultimate recovery ratio, and realize the development of benefits.