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- mechanical paraffin removal 机械清蜡
- The ball type paraffin removal unit has low reliability in moving; while the tooth type unit has the disadvantages of teeth being apt to break and causing damage of tubing inwall. 球型清蜡器的主要缺点是运动的可靠性差，一旦钢球丧失锁紧功能，将失去“步进足”的作用；而齿型清蜡器的步进齿易破损及齿尖易刺伤油管内壁。
- The working principle, design features and advantages and disadvantages of ball type and tooth type steppiing paraffin removal units are introduced. 介绍了球1型、球2型、齿2?1型和齿4型步进式清蜡器的工作原理、结构特点及优缺点。
- Abstract: The working principle, design features and advantages and disadvantages of ball type and tooth type steppiing paraffin removal units are introduced. 文摘:介绍了球1型、球2型、齿2?1型和齿4型步进式清蜡器的工作原理、结构特点及优缺点。
- The latest technologies in paraffin removal and control in foreign countries are briefly introduced, such as paraffin removal by oil well tubing fillup valve, negative pressure shock, in? 简要介绍了国外最新应用的清蜡、防蜡方法,诸如油井油管注入阀清蜡、负压冲击清蜡、井下就地产热清蜡、油井直接电加热清蜡和使杆管表面亲水防蜡等。
- Its application proves that it can prolong the paraffin removing period and reduce the well-flushing times with an apparent economic benefit. 通过实践证明，该种清防蜡剂可延长清蜡周期，减少洗井次数，经济效益显著，值得广泛推广。
- paraffin removal with chemical method 化学清腊
- Low-pressure small-displacement thermal paraffin removal technique 油井低压小排量热力清蜡技术
- Formulation of WH-1 for Paraffin Removal and Inhibition 乳液型清防蜡剂WH-1的研制
- Effect Analysis on Paraffin Removal and Control in Hainan Block 海南区块清防蜡效果分析
- Keywords chem-thermogenic system;paraffin removal;LunLan oil field; 化学生热体系;清蜡;轮南油田;
- Is this equipment tested for mechanical aptitude? 这台设备测定了其机械适应性了吗？
- We need a mechanical digger to level the ground. 我们需要一台挖掘机来平整土地。
- The fire blazed up when he added paraffin. 他加了一些煤油，火就燃烧起来了。
- Candles are made of paraffin wax. 蜡烛是由石蜡做成的。
- The move water have mechanical energy. 流动的水拥有机械能。
- Surgical removal of part or all of the uterus. 子宫切除术将子宫的全部或部分通过外科手术切除
- Study on the property of oil-base paraffin remover 油基清蜡剂性能研究
- Blinking is a mechanical action of the eyelids. 眨眼是眼睑的无意识动作。
- Surgical removal of all or part of a lung. 肺切除术，肺部分切除术对整个或部分肺的外科手术切除
