The combined effects of the above factors resulted in reducing oil displacing efficiency.
以上因素的综合作用降低了聚合物驱油效果。
Surfactants can improve the water displacing oil efficiency by about 10%.
表面活性剂能够提高此类储层的微观水驱油效率10%左右。
Meanwhile, if the corrosion phenomena occurs around the fracture, the formed solution fracture is propitious to improve water displacing oil efficiency in matrix.
同时研究表明在裂缝周围如果存在溶蚀裂缝，也有利于提高基质驱油效率。
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