目前各油田的小断块大都是早期注水采油，有的只有注水管线，没有洗井水回收管线；有的即使有回收管线，但没有洗井水处理系统。注水井长期不清洗，井底的沉淀物自然增多，当沉淀物堆积到注水管出口附近时，在注水水流的冲击下，沉淀物随水进入地层形成堵塞，给油田生产带来危 At present, most of the small fault blocks in the oilfields are mostly early oil and water recovery. Some only have water injection lines and no well water recovery lines. Some even have recovery lines but no well water treatment systems. Water injection wells do not clean for a long time, the bottom of the sediment naturally increased, when the accumulation of sediment to the injection pipe near the outlet, under the impact of water flow, the sediment into the formation with the water to form a blockage, to the oil field production brought