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低渗透层     
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  low permeability layer
     The effect of polymer solution on improvement of oil-displacement efficiency in high permeability layer is better than the effects in medium and low permeability layer.
     聚合物溶液在模型高渗透层内提高驱油效率作用的效果要好于中、低渗透层
短句来源
  low-permeability layer
     Under the same exploitation conditions, the influence of the flow on the low-permeability layer becomes large for smaller thickness of the layer.
     在采取同样的注采方式下 ,一般低渗透层厚度越小 ,窜流量对低渗层的影响越大。
短句来源
  low permeable layers
     In order to make full use of polymer flooding in increasing sweep efficiency and improve efficiency of alkal/surfactant flooding,this paper proposes a new method of alternative injection of polymer and alkali/surfactant aiming at problems of polymer suction profile reversing in certain stage and large difference of suction amount of ASP system in high,medium and low permeable layers.
     为了最大限度地发挥聚合物驱扩大波及体积的作用和碱/表面活性剂二元驱提高洗油效率的作用,针对聚合物驱吸入剖面在一定阶段发生反转,三元复合驱高、中、低渗透层三元体系吸入量差异大等问题,提出了一种利用聚合物与碱/表面活性剂交替注入提高采收率的新方法。
短句来源
  low permeable strata
     After the profile control, the relative water intake capacity increases by more than 19.73% in the low permeable strata, while it decreases by more than 31.83% in the high permeable strata, and the total oil recovery efficiency increases by more than 5.25%, water-cut reduces by more than 3.83%.
     调剖后,低渗透层相对吸水量比调剖前提高19.73%以上,高渗透层相对吸水量比调剖前降低 31.83%以上,原油综合采收率比水驱提高5.25%以上,综合含水率降低3.83%以上;
短句来源
     The results show that for the fractured anisotropic reservoirs ,the injection water mainly flows alone the high permeable stratum and the fracture, the relative water intake capacity is more than 74.63% in the high permeable strata ,and is less than 9.24% in the low permeable strata.
     结果表明:对于非均质裂缝油藏,水主要沿高渗透层流动,高渗透层的相对吸水量占总注入量的74.63%以上,而低渗透层相对吸水量低达 4.87%;
短句来源
     The water intake capacity of the intermediate and low permeable strata increasing and the water intake capacity of the high permeable strata reducing are marked by the permeability grade increasing.
     渗透率级差越大,低渗透层相对吸水量提高,高渗透层相对吸水量降低幅度越大,调剖效果越显著.
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      low permeability layer
    In addition to the problem geometry, the effects of an impermeable base and a thin low permeability layer penetrated by the sheeting are also studied.
          
    An encounter with a low permeability layer can also impede its progress.
          
    Capping of a landfill with a low permeability layer reduces the available moisture, thus retarding landfill gas production.
          
    The corresponding log-derived and match values in the low permeability layer was 60 mdft and 5 mdft.
          
    Within this low permeability layer are discontinuous lenses of more permeable, coarser-grained sediments.
          
      lower permeability layer
    This type of behavior indicates that vertical air movement being restricted below the water table, presumably by some lower permeability layer.
          
    Thus the injected air accumulates below the lower permeability layer, and can only move laterally.
          
      low-permeability layer
    This upper impermeable boundary condition represents a low-permeability layer in the crust that separates the overpressured fluid from the overlying hydrostatic fluid pressure regime.
          
    As an illustration the numerical model is used to quantify the imprint of a low-permeability layer on the liquefaction behavior.
          
    Seawater intrusion into the coastal aquifer system occurs as a result of overpumping in two seawater wedges separated vertically by a low-permeability layer.
          
    Aquifer/Perched Aquifer A region of saturated ground material unbound by an impermeable or low-permeability layer such as clay.
          
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