During water plugging operation, the key factor of success is how to protect non-target zones from pollution.
在堵水封窜作业中，如何保护非目的层不受污染，是施工成功与否的关键。
The pig is blocked frequently when pipeline pigging, which will influence the normal operation due to severe plugging sometimes.
现场清管作业时清管器经常被卡堵，严重时会影响正常生产。
It is especially suitable for plugging high permeable, macro pore path formations and convenient for field operation with a small amount of volume and a low cost, obtaining a good effect.
尤其适应于封堵高渗透、大孔道地层，且现场施工简便、施工用量少、成本低，取得了很好的应用效果。
It is pointed out that the plugging and freezing of breather valve, variation in parameters and operation conditions of oil tank and human factors result in the shrink of oil tank.
指出导致油罐抽瘪的主要原因是呼吸阀堵塞和冻结、油罐参数和工艺条件发生变化以及操作失误等。
The chemical grouting material has safe surface operation, and has good water plugging effect on stratums with micro cracks.
本发明地面操作安全，细微裂隙地层堵水效果好。
Smooth and safe operation of underground gas storage facilities is guaranteed by the design of observation wells, the plugging of old wells, and safety designs, etc… f.
⑤采用设置观察井、老井封堵和注采井安全措施等方法来保障储气库安全运行；
Then, in accordance with the practice of a diversion tunnel for a certain hydropower station, the whole procedure consisting of construction, operation and plugging has been analyzed.
结合某水电站导流隧洞的工程实例，进行了施工、运行和封堵全过程仿真分析。
One features: easy operation, excellent sealing, anti-vibration, no leakage, no distortion, no plugging.
一特点：操作便捷，密封性极好、抗振动、不渗漏、不变形、不堵管。
The plugging fluid has been used in over 20 wells, the plugging rate was 100%, and 80% of the wells were successfully plugged in only one operation.
现场使用20余口井证明，该堵剂的封堵率达100％，并且在封堵 作业中一次成功率在80％以上。
Inorganic non-metallic high temperature plugging material is designed for heavy oil thermal recovery of high temperature operation and development of plugging new material.
无机非金属高温调堵材料是专门为稠油热采的高温调堵作业而研制的新材料。
The exhausting anti-plugging device is good in seal effects, safe and reliable in operation, meanwhile, the service life of the seal ring is also greatly prolonged;
该排气防堵装置密封效果好，使用安全可靠，同时也大 大的延长了密封圈使用寿命；
This paper introduces the principles, properties, field operation process and effects of this new agent. The property indexes of this grain plugging and profile control agent are optimized.
介绍了GQ复合颗粒堵剂堵调原理、性能、现场施工工艺及调剖效果，优化了颗粒堵剂的各种性能指标等。
This paper introduces the principles, properties, field operation process and effects of this new agent. The property indexes of this grain plugging and profile control agent are optimized.
介绍了GQ复合颗粒堵剂堵调原理、性能、现场施工工艺及调剖效果，优化了颗粒堵剂的各种性能指标等。
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