In almost any operation, loss of fluid to the reservoir formation carries a high risk of permeability damage.
在几乎任何作业中，流体向储层的滤失都具有渗透率减损的高风险。
Perforating in a dirty fluid may result in significant permeability damage that is difficult to treat and remove.
在不洁的射孔液中进行射孔会造成难以处理和去除的显著的渗透率损害。
It has the advantages such as convenient construction, high consolidation strength, long va lid period and small permeability damage.
该化学体系施工简便，固结强度高，有效期长，对渗透率损害小。
Blockage of coal seams by fracturing fluids (FFs) and swelling of coal matrix owing to FF adsorption are discussed and considered to be the basic factors for coalbed permeability damage.
讨论了伤害煤层渗透率的两大因素：压裂液堵塞煤层割理；煤基质吸附压裂液而膨胀。
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.
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。
Itss biggest advantage: strong decorative performance, lighting performance and permeability is good, basic don't need daily maintenance. Disadvantages: easy to damage, some reflection.
其最大优点：装饰性能强，采光性能和通透性都比较好，基本不需要日常维护。弊端：容易破损，有些反光。
Core permeability lowers along with the decreasing salinity of fluid used in the experiment, and water sensitivity damage intensifies when fluid salinity decrease sharply.
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。
At high speed, asphaltene plugging is more serious with increase of flow rate. The damage degree of asphaltene plugging is higher in low permeability core than in high one.
在较高流速下，随速度升高，沥青所造成的孔喉堵塞更加严重，在低渗岩心中沥青堵塞引起渗透率伤害程度大于高渗透岩心。
The speed of flowback during fracturing influences the damage of liquid invading when taking a fracture measure to a low permeability condensate reservoir.
在对低渗透凝析气藏采取压裂措施时，压裂后的返排过程影响到液锁对地层的伤害程度。
When the formation damage is very serious, the effect of the skin factor for formation damage or permeability decreased on radius of investigation should be considered.
当地层受到严重损害时，应考虑地层损害表皮系数或渗透率降低对调查半径的影响。
The optical microscope and SEM were employed to analyze the damage of glass fiber during weaving and resin permeability in the course of molding of composite materials.
同时采用光学显微镜和SEM分别对织造中玻纤断裂情况和树脂在复合材料成型过程中的渗透性进行了研究。
The lower the permeability and the smaller the pore-throat radius as well as the lower the reservoir pressure, the easier the formation of water locking damage, and it is difficult to be removed.
渗透率越低，孔喉半径越小，油层压力越低，越容易产生水锁损害，且越难以解除其损害。
Formation damage in recovery process of A-Nan low permeability sandstone reservoir is thoroughly studied on base of analysis of production performance and cores.
在分析生产动态和岩心分析基础上，对阿南低渗透砂岩油藏开发过程中的储层伤害做了较为深入的研究。
Conclusion CPB can induce activation damage of vascular endothelial cell, and increase vascular permeability.
结论体外循环可诱导炎症反应致内皮细胞损伤或激活，并可致血管通透性增高。
The pressure sensitiveness of gas reservoir with low permeability is one of main factors resulting in gas formation damage during drilling.
低渗气层压力敏感性是钻井过程中造成气层损害的主要因素之一。
The permeability change can damage the reservoir and the damage is irreversible.
渗透率变化会损害油藏，而且这种损害是不可逆的。
Conclusions high permeability dialysis is safe in first-use, but it causes more serious acute complications in reuse practice. Reuse might damage the membranes of high permeability dialyzer.
结论高通透性透析在初用时是安全的，但在复用时其急性并发症发生率明显升高。
The results show that: barium sulfate scale damage on the core permeability is affected by temperature, mixing ratio and the cumulative injection.
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 phenomenon of reservoir permeability decrease caused by drilling, completion and other underground operation is known as formation damage.
在钻井、完井等井下作业过程中，造成油气层渗透率下降的现象通称为油气层损害。
It can be applied in calculating damage degree of the stress sensitivity of permeability of this reservoir.
通过该式可以计算该储层渗透率应力敏感性伤害程度。
Hence, in order to effectively developing the low permeability sandstone field, it is necessary to study its damage mechanism, and proposing the pertinent gas field protective measures.
因此，为高效开发低渗透砂岩气田，有必要对其损害机理进行研究，提出有针对性的气层保护措施。
The treatment can obviously promote the permeability of paulownia wood, and has no damage to the color of paulownia wood.
稀碱液处理能显著提高桐木的渗透性，对桐木的颜色无明显损害。
The damage to core permeability due to injection water quality is studied by means of core driving experiment with different water.
通过不同水样的岩心驱替实验，研究了注入水质对岩心渗透率的伤害率。
Swelling, cracking, dispersion, migration and plugging of clay minerals are the main factors of the reservoir damage in high-pressure low-permeability reservoirs.
粘土矿物的膨胀、破裂、分散、运移和堵塞是对高压低渗油藏储层伤害的主要因素之一。
As the amount of scale increase, the difference of formation damage decreases in formations with different permeability.
随结垢量增大，渗透性不同，油层结垢伤害程度的差异减小。
In general, the larger the amount of scale is or the lower the permeability is, the severer the formation damage is.
一般结垢量越大，油层渗透性越差，结垢对油层的伤害越严重。
Meanwhile, reverse imbibitions water blockage effect would be appeared to further damage the near the wellbore formation, especially in the low permeability and low productivity condensate gas Wells.
同时，在近井带还会形成反渗吸水锁效应，从而进一步加剧近井带地层伤害，对低渗低产凝析气井，这一现象尤为严重。
Based on the change of stress from upside rock in the reservoir, the damage to permeability is illustrated by the lab experiment.
根据储层中上覆岩石围压变化，通过室内试验表述了其对渗透率伤害。
When the formation damage is very serious, the effect of the skin factor for formation damage or permeability decreased on radius of investigation should be consid...
当地层受到严重损害时，应考虑地层损害表皮系数或渗透率降低对调查半径的影响。
The filter action, the feature of filter cake, the damage of core permeability effected by cake and the solving method are researched by the way of dynamic filter experiment.
用动态滤失实验研究了压裂液的滤失行为，滤饼的性质，滤饼对岩心渗透率的伤害及其解除方法。
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