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- In order to increase coiled tubing work time,the structure in coiled tubing system is improved without... 改进连续油管作业装置的结构,不用导向架是延长连续油管使用时间的有效途径。
- The prediction model of coiled tubing fatigue life. 连续油管疲劳寿命预测模型的建立。
- Coiled Tubing Operations in Oil and Gas Well Services. 提供了挠性油管的设计及操作推荐作法。
- A new method for fatigue reliability analysis of coiled tubing. 连续油管疲劳可靠性分析的新方法。
- Modelling the diametral growth of coiled tubing under the action of an internal pressure. 连续油管在内压作用下直径增长模型的建立。
- These three components combine to form a closed tube system. 这三个元件组合成了一个封闭管系统。。
- The coiled tubing fault tree is constructed based on field investigation and relevant literature by use of the fault tree analysis theory. 结合现场调研和有关文献资料，根据故障树分析理论，用演绎法建立了连续油管的故障树。
- More accurate calculation of pressure loss in narrow annuli of slim holes and coiled tubing operations is required. 在小眼井和连续油管作业的窄环空中，要求更加准确地计算摩擦压降。
- In this paper,formula for determining strain energy of coiled tubing during reeling is derived. 推导了用于确定挠性油管在缠绕过程中的应变能计算公式。
- In the end ,some advice that amplifies the uses of coiled tubing units is put forword. 提出了尽快开展连续油管作业技术应用研究的必要性和实现连续油管设备国产化的建议。
- Abstract: The formula for analyzing the stability of coiled tubing in horizontal well is deduced with consideration of boundary conditions. 文摘:考虑端部约束条件，建立了连续油管在水平井中的稳定性方程。
- The formula for analyzing the stability of coiled tubing in horizontal well is deduced with consideration of boundary conditions. 考虑端部约束条件，建立了连续油管在水平井中的稳定性方程。
- A method of correcting distortion in the measured unsteady pressures using a tubing system and off-board pressure transducers is described. 使用外置压力传感器测量非定常压力会造成非定常测量信号失真。
- The manufacturing process of coiled tubing and its applications in well drilling , completion,washover and logging are introduced. 介绍了挠性油管的制造工艺和制造过程及其在钻井、完井、修井、测井等特殊作业中的应用情况。
- Methods Using periodic pressure signals exciting and regressions.Results The dynamic characteristics of tubing system were also discussed. 方法采用周期激励方法的试验方法，并用多项式回归方法对试验结果进行回归处理，给出了传压管路的频率响应函数。
- The coiled tubing fault tree is constructed based on field investigation and relevant literature by use of the fault treeanalysis theory. 结合现场调研和有关文献资料，根据故障树分析理论，用演绎法建立了连续油管的故障树。
- I31.75 coiled tubing has the property of small diameter,thin wall and flexibleness,If it breaks and falls in downhole,it is difficult to fish. 75的连续油管具有外径小、壁薄、挠曲性好等特性。如果断落到井里,其打捞非常困难。
- The coiled tubing fatigue belongs to overlow cycle fatigue at multi-axial stress state.The prediction theory of this field is far from comp lete. 而连续油管的疲劳是应力状态较复杂的多轴超低循环疲劳，目前该疲劳寿命预测理论还很不成熟。
- Therefore, we have competitive force in the Coiled Tubing, Coiled Hollow Sucker Rod and High Grade ERW Plain End Tubing markets. 因此，公司生产连续油管、连续空心抽油杆和高钢级ERW油光管具有较强的市场竞争力。
- This kind of pipe producing method promises Coiled Tubing has small OD but thick wall thickness, which seamless tubing can not achieve. 这种制管工艺能将带钢制造出小口径大厚壁的连续管，这是无缝管难以实现的。
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- 深远海浮式风电平台 - deep-sea floating wind power platform
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- 京雄高速公路 - Beijing-Xiongan expressway
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- 农业及相关产业增加值 - the added value of agriculture and related industries
