But if matrix permeability is low, higher recovery rate is not allowed to use due to its low imbibition displacement velocity.
如果基质渗透率较低，因其吸渗排油速度低，不宜采用较高的采油速度。
Decrease of the oil displacement efficiency of the damaged reservoirs is mainly resulted from the reduction of matrix permeability, change of wettability and increase of capillary pressure.
基质渗透率的降低、润湿性的改变以及毛细管压力的增大是储层驱油效率降低的主要因素。
In each case, the matrix acidizing treatment improves the formation permeability to enable enhanced production of reservoir fluids.
在每种情况下，基岩酸化处理改善了地层的渗透性，于是使储层流体的产量增加。
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