纯化油田储层层多且薄、储层物性差,孔喉半径小,给该块的开发带来较大的困难,主要体现在注水压力高,注水难度大,导致地层能量不足,产量低。为探索开发新途径,在区块南部进行小井距实验,注采井距缩小到200米,降低了压力损耗,取得较好的开发效果。 Purified oil reservoirs with many layers and thin reservoirs have poor reservoir properties and small pore throats, which brings great difficulties to the development of this block. It is mainly caused by high water injection pressure and difficulty in water flooding, resulting in insufficient formation energy and low yield. In order to explore new ways of development, a small well spacing experiment was conducted in the southern part of the block. The well spacing between injection and production was reduced to 200 meters, which reduced the pressure loss and achieved better development results.