The reservoirs are characterized by low height trap, serious heterogeneousreservoir, low resistivity and poor efficiency of water driving oil.
油气藏具有构造幅度低、非均质性严重、低阻油层发育及水驱油效率低等特点。
2
The results show that the sweep efficiency and displacement efficiency work different effects on different layers in the severely heterogeneousreservoir.
通过研究表明对于非均质严重的油藏，不同层段的波及效率和驱替效率所起的作用不同。
3
In multilayer heterogeneousreservoir, the interlayer difference would lead to nonuniformity of injection profile and influence water displacement efficiency.