所有井下设备均为双重密封且通过泄露测试。
射孔酸的组成取决于地层特性和所用的井下设备。
Formulation of the perforating acid depends on the characteristics of the formation and the downhole equipment used.
不管是陆地还是海上，因井下设备处在强腐蚀环境下，往往需要经常修井。
Wells in the Middle East, both onshore and offshore, often require workover because of the highly corrosive environment to which the downhole equipment is subjected.
有杆泵井中的腐蚀和磨损，造成油井的井下设备损坏，严重影响油井的正常生产。
The corrosion and wear of rod pump well cause the damage of downhole equipment and seriously affect the normal production of oil well.
并从采矿方法、 矿床回采顺序、井下设备选择等多方面提出了矿井降温的有效措施。
The effective mine cooling measures are pointed out according to the mining method, stoping sequence and underground equipments.
由于井下设备需进行防火防爆的特殊处理，致使救援通信设备较矿井笨重，影响井下救援行动迅速充分地展开。
For the equipments in the mine are specially needed fire and blast protection, the rescuing communication equipments are relatively large and heavy, affecting the rescue sufficiently carried out.
该产品可以与煤矿井下移动变电站或者干式变压器并联使用，提高井下电网功率因数至0.95以上，减少电能损耗，提高井下设备安全性，促进采掘工作的生产。
This product can multiple with coal mine transformer use, improving the pf to above 0.95 while reducing power loss, improve safety, promoting mining equipment working production.
该产品可以与煤矿井下移动变电站或者干式变压器并联使用，提高井下电网功率因数至0.95以上，减少电能损耗，提高井下设备安全性，促进采掘工作的生产。
This product can multiple with coal mine transformer use, improving the pf to above 0.95 while reducing power loss, improve safety, promoting mining equipment working production.
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