Aimed at the model formation damage, specific technical countermeasures are proposed.

针对漏失性储层损害模式, 提出了具体技术对策.

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Adding 1 - 2 % of PF - BPA should be commenced before entering pay zone to minimize formation damage.

进入油层前就在泥浆中加入1～2%的PF - BPA,以减少地层的损害.

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The selection of rheological test condition, friction property, proppant carrying capacity and formation damage etc.

重点讨论了压裂液流变试验条件的选择 、 降阻性能 、 携砂能力和保护储层技术.

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Underbalanced drilling technology can increase ROP and decrease formation damage, so it is increasingly used worldwide.

欠平衡钻井技术可以降低地层损害、提高机械钻速, 所以在世界范围内被逐渐采用.

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It can prevent loss, collapse and formation damage and the compatibility is good.

超低渗透钻井液防漏 、 防塌、防地层损害效果以及配伍性均较好.

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The influence of temperature, pressure and shear rate on formation damage are also discussed.

讨论了温度 、 压力、速度梯度对保护储效果的影响.

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Reservoir exist strong formation damage of water sensitivity, salt sensitivity and alkali sensitivity and so on.

储层存在较强的水敏损害 、 盐敏损害、碱敏损害等.

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If skin factor of formation damage is more , its radius of investigation is less.

井底附近地层渗透率降低比改善对调查半径的影响要大.

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The radius of investigation for formation damage has been formulated in this paper.

调查半径与地层损害的程度及范围有关,文中得到了地层受到损害时的调查半径.

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Little experience on the formation damage caused by the produced - water reinjection in domestic offshore oilfields accumulated.

国内海上油田回注产出水的工作起步较完,对产出水造成的地层伤害及补救措施经验不足.

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Invasion of drilling fluidcompletion fluid causes clay swelling and fines migration, which leads to formation damage.

钻井过程对储层的损害,主要是粘土膨胀和微粒运移造成的.

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