Different characteristic of oil bearing strata, especially permeability contrast can arise fingering of the water oil frontal during waterflooding stage in a regular multilayer reservoir.

常规多层油藏在注水开发时由于各储层物性差异特别是渗透率的差异，会引起各储层油水前缘的指进现象。

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The closer the permeability ratio is and the smaller the permeability contrast is, the more gently the recovery evaluation parameter curve is and the smaller the range-ability of the curve changes.

渗透率比值越接近，层间渗透率级差越小，采出程度评价参数曲线越平缓，变化幅度越小。

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By contrast, no change in other immunologic parameters, intestinal permeability, or growth were noted.

相比而言，并没有记录到其他免疫参数，如肠渗透性，变化或增长。

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