formation damage

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.

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.

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.

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.

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.

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.

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.

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.

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.

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.

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.