Because of inner-layer, interlayer and areal heterogeneity of reservoir, after a long period of water flooding, injected water circulates in high permeability channel, sweep volume cannot be enlarged, and injected water volume of per ton increases a lot.
英
美
- 摘要由于儲層層內、層間及平面不均衡性，經(jīng)過(guò)長(cháng)期注水開(kāi)發(fā)，導致注入水沿高滲透條帶循環(huán)，很難進(jìn)一步擴大波及體積，使得噸油注水量大幅度增加。
