The mega perforator can be used in an open hole to reduce formation damage.
大射孔器可在裸眼井中使用，以减小地层损害。
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。
Formation damage occurs when injected water is not compatible with the reservoir.
油田注入水与储层不配伍时会导致储层伤害。
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。
Asphalt deposition is one of the important causes for formation damage and production reduction.
原油开采过程中的沥青沉积是引起地层伤害、产液量下降的一个重要原因。
The plug was to be removed later by drilling and acidizing to resume production without formation damage.
插件是拆除后，由钻井和酸化恢复生产无地层损害。
Method Based on experimental study result, mechanism of formation damage from temperature oscillation is analyzed.
方法根据实验研究成果，分析温度震荡引起的储层损害的机理。
The formation damage during drilling are recognized as 2 types: mud solid particles plug and mud filtrate invasion.
钻井过程中的油层污染可分为泥浆固相颗粒侵入和滤液侵入2种类型。
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。
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 level of formation damage induced by injected water scaling in the oilfield is evaluated with core displacement test.
采用岩心驱替试验评价了商河油田注入水结垢对地层的伤害程度。
It will cause serious formation damage while water intrude into the gas reservoir during drilling, completion and development.
在钻井完井及开发过程中，工作液及边底水侵入致密砂岩气藏会导致严重的储层损害。
The formation damage mechanisms mainly include liquid locking, stress sensitivity, water sensitivity and salt sensitivity damages.
储层损害机理以储层液锁损害、应力敏感损害以及水敏、盐敏损害等为主。
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 major causes of formation damage induced by sewage are determined by studying and the indexes for water injection in the block are established.
通过研究确定了污水对地层伤害的主要因素，制定了区块的注水指标。
Skin factor is an important parameter in diagnosing formation damage degree, its value can reflect the formation damage degree and productivity loss.
表皮系数是识别和诊断地层伤害程度中最重要的参数，它的大小直接反映地层伤害和产能损失情况。
This paper investigated the water sensitive and velocity sensitive damage in Anan oilfield, and formation damage caused by poor water quality injected.
讨论了阿南油田注入水的水敏性和速敏性损害以及由于注入水水质不合格带来的储层损害。
Based on the capillary pressure data measured with high velocity centrifugal method, the formation damage by additives for injected water was evaluated.
根据高速离心法测定的毛管压力数据，评价了注水处理剂对中低渗透率地层的损害。
On-site fast permeability detecting of non-regular shaped cuttings is very important for evaluating the formation damage degree caused by the invasion fluid.
现场快速测定形状不规则岩屑的渗透率是评价入井流体对储层损害程度的一个重要手段。
The skin factor gained by the well test should be decomposed into several skins by experience formula to find out the mechanical skin due to formation damage.
试井获得的总表皮因子通常需要根据经验公式分解为各种影响因素的拟表皮，最终得到由地层伤害引起的机械表皮因子。
The incorporate technology can settle sand control, water plugging and injectivity profile control in one time and reduce formation damage and operating cost.
一次性实现防砂、堵水、调剖的工艺技术，可节约费用，减少对地层的伤害。
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。
In addition, the techniques of producing remaining oil, preventing formation damage, improving drilling and completion and deep well production should be studied.
另外，挖潜剩余油技术、解除油层伤害技术、提高钻完井技术、深井采油技术等也需要攻关。
Formation damage mechanism of buried-hill reservoir may differ seriously from the overlying sandstone reservoir because of the different reservoir characteristics.
潜山储层和上覆沉积层砂岩储层特性明显不同，因此其损害机理有较大差异。
This paper presents a method for evaluating formation damage by the use of capillary pressure data in laboratory obtained with the high pressure semipermeable-membrane.
使用高压半渗透隔板法测得的毛细管压力数据在实验室内可以系统地评价地层伤害的程度。
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。
Organic scale from asphaltene precipitation is one of main causes of formation damage, Therefore to take some effective prevention and remove measures is very necessary.
原油沥青质沉积形成的有机垢是造成油气层损害的主要原因之一，因此对原油中沥青质的沉积采取有效的预防和清除措施是至关重要的。
In order to clarify the potential factors of formation damage in Wei 11-1 oilfield. A core flow testing device is used to study the reservoir sensitivity in the oilfield.
为了弄清和掌握涠11 - 1油田储层损害的潜在因素，应用岩心流动试验装置研究了涠11 - 1油田储层的敏感性。
The advantages of gas drilling are: high drilling efficiency, effectively controlling formation damage, preventing from lost circulation and adhesive drill pipe sticking.
气体钻井的优点有：钻井效率高、有效保护油气层、防止井漏和黏附卡钻。
The advantages of gas drilling are: high drilling efficiency, effectively controlling formation damage, preventing from lost circulation and adhesive drill pipe sticking.
气体钻井的优点有：钻井效率高、有效保护油气层、防止井漏和黏附卡钻。
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