实验结果表明：硫酸钡结垢对岩心渗透率损害程度受温度、混配比例和累积注水量的影响。
The results show that: barium sulfate scale damage on the core permeability is affected by temperature, mixing ratio and the cumulative injection.
目前的3种压裂液对葡萄花油层污染均较为严重，田菁胶、香豆胶、瓜胶压裂液对岩心渗透率损害率分别为27.89%，18.51%，26.06%。
These 3 kinds of fracturing fluids may seriously contaminate Putaohua reservoir. The damage rate of sesbania gum, fenugreek gum and guar gum were 27.89%, 18.51%, 26.06% respectively.
实验用氮气以不同的驱替速度和驱替压差驱替岩心，得到由速敏性引起的渗透率损害及相关分析结果。
Nitrogen gas with different displacing velocity and pressure was used to displace the core in testing, the permeability damage and correlation analysis caused by velocity sensitivity were obtained.
随着用于实验的流体矿化度的逐渐降低，岩心渗透率持续下降，且当流体矿化度急剧降低时，岩样水敏性损害加剧。
Core permeability lowers along with the decreasing salinity of fluid used in the experiment, and water sensitivity damage intensifies when fluid salinity decrease sharply.
岩心被油基泥浆损害后，凭常规的注水冲刷手段，渗透率很难恢复到原来的水平。
Once cores are damaged by oil-based mud, it is difficult to restore the permeability of cores to its original level by applying the conventional technique of water injecting and washing.
岩心被油基泥浆损害后，凭常规的注水冲刷手段，渗透率很难恢复到原来的水平。
Once cores are damaged by oil-based mud, it is difficult to restore the permeability of cores to its original level by applying the conventional technique of water injecting and washing.
应用推荐