It has a practical meaning for the strength design and combination usage of drill string, casing and tubing under different technological conditions.
对处于不同工艺条件下的钻柱、套管、油管的强度设计和组合使用等均有实际意义。
Installing an electrical conductor or hydraulic conduit further enhances the capability of a coiled tubing string and enables relatively complex intervention techniques to be applied safely.
安装一个电导体或水力导管将进一步地提高挠性管柱的性能，并使相对复杂的采油井下工艺措施技术能安全地被使用。
A problem about tubing string vibration caused by the fluid unsteady flow inside tubing string is studied from the Angle of solid liquid coupling vibration in dynamics.
文章从动力学中固液耦合振动的角度出发，研究了油管柱内流体不稳定流动引起的油管柱振动问题。
In consideration of the effect of liquid dynamic pressure on the tubing string vertical vibration, the differential equation and frequency equation for describing the vibration are set up.
考虑液动压力对油管柱纵向振动的影响，建立了油管柱纵向振动微分方程，并给出了这种情况下油管柱纵向振动的频率方程。
What is the average tubing temperature if the surface temperature of the tubing string is 700f and the temperature at the bottom is 2100f?
如果油管柱的井口温度是华氏700f，井底温度是2100f，它的平均温度是多少？
A generic term relating to the use of a coiled tubing string and associated equipment.
关于挠性管柱和相关设备的通用术语。
Established string sinusoidal buckling of helical buckling CFD models and high-yield Wells sand production erosion tubing model.
建立了管柱螺旋屈曲和正弦屈曲的CFD模型和高产气井出砂时砂粒对屈曲油管的冲蚀模型。
When the tubing string must be cut to enable recovery, the free point should be known to ensure retrieval of the cut tubing.
当油管柱必须被割断以起出管柱时，必须知道卡点位置以确保起出被割断的油管。
In accordance with downhole tubing sticking by sand burial accident, this paper proposes hollow rod sand washing after analysis of downhole string structure and hydraulic calculation of sand grain.
针对处理井下油管砂埋遇卡事故作业中出现的技术问题，在分析井下管柱结构及砂粒的水力计算的基础上，提出了空心抽油杆冲砂工艺处理措施。
This is an important factor in determining the operating limits of coiled tubing strings since the action of spooling the string tends to induce some ovality.
这是确定挠性管柱工作范围的重要因素，因为挠性管的缠绕趋向于产生某个椭圆度。
The natural form that a section of coiled tubing string will take if spooled from the reel and allowed to rest without any tension applied.
如果挠性管从卷筒上放出并停歇时没有施加任何拉力，在这种情况下一段挠性管柱将会采取的自然形状。
As the hydraulic drive system rotates the chains, the gripper blocks feed the tubing string into, or out of the well.
当液压传动系统使链转动时，夹块将挠性管柱送入井内或将它从井内带出。
Some problems such as high cost of tripping the tubing string, limited injection pressure and insufficient gas supply will be faced when gas lift is used as an artificial lift method for deep Wells.
深井用伴生气经压缩机增压后进行气举采油，将碰到起下油管作业费用大、地面注气压力有限、气源将可能不足以满足各井需求等问题。
This paper deduced equation by analyzing strength endured by tubing string, based on formula, taking advantage of graphical method checkout the maxim setting depth and strength.
通过对组合管柱的受力分析，依据推导的公式，找到了一种采用图板进行油管柱最大下入深度和强度校核的方法。
The gooseneck mounted on top of the injector head feeds the tubing string from the reel around a controlled radius into the injector head.
固定于注入头顶部的鹅颈将挠性管柱从卷筒绕着一个受控制的半径送入注入头。
The maxim setting depth of tubing is related to its strength, density, inner and outer pressure difference as well as wellbore fluid's buoyant force to tubing string.
油管的最大下入深度与油管本身的强度、密度、油管内外压差、井中流体对油管柱浮力有关。
The system makes use of the tubing string as heat source body to transfer the electric energy into heat energy to heat the liquid in the tubing.
该装置利用油井中的油管柱作热源体将电能转化为热能，加热油管内的液体。
The calculating formula for critical axial load of worn rod string and tubing was set up.
建立了铅垂油井杆管偏磨临界轴向压力的计算公式。
It also is one of the effecting factors whether or not the selected style of well completion and the selected structure of tubing string are suitable.
气井完井方式和管串结构的选择是否合理也是影响因素之一。
The change of temperature after or before gas well put into production will result in the variation of tubing string stress and axial deformation.
气井投产前后温度和压力变化会引起油管应力及轴向变形的改变。
On the basis of the theoretical and experimental research, the preventive measures are discussed such as installing tubing anchor, rotary device of rod string and centralizer.
在理论分析和试验研究的基础上，针对井下的杆管偏磨问题，对安装油管锚定装置、旋转抽油杆装置和抽油杆扶正器这三种预防措施进行了探讨。
When the tubing string is milled, the helical weld form provides enhanced characteristics of the tube at the weld site.
当挠性管柱被轧制时，焊缝的螺旋形使得在焊缝处增强了管子的性能。
The excess material formed on the internal surface of a coiled tubing string by the longitudinal weld during manufacture.
挠性管柱在制造时由于纵向焊接在其内表面所形成的多余物质。
The correct volume ensures that the column of fluid in the tubing string is balanced by the column of fluid in the annulus.
正确的用量确保了在油管柱中的液柱被环形空间中的液柱所平衡。
A generic name given to tools that engage on the outer surface of a tubing string or tool assembly, generally for fishing purposes.
与油管柱或工具装置的外表面相接合的工具通称，一般用于打捞目的。
When the control system opens the well for production, the plunger and a column of fluid are carried up the tubing string.
当控制系统开井生产时，柱塞和液柱沿油管柱向上被携带。
Through the development of matching tools, a multi-function process tubing string is designed for reducing the liquid level.
通过研制配套工具，设计出多功能井筒降液面工艺管柱。
During oil recovery by rod pump, owing to the elastic stretching and shrinking of the tubing string, the stroke loss of the subsurface pump reaches 10%.
在有杆泵抽油过程中，因油管弹性伸缩，抽油泵冲程损失达10%以上。
The tubing string lifting velocity of the conventional mechanic rig under each particular gear is constant.
常规机械式修井机每一档下的管柱起升速度为常量。
The integrity of the completion tubing string consists of two parts:the basis of ensuring tubing not be destroyed and adequate strength so that ensuring the safety of tubing;
管柱的完整性主要包括两部分：基础是保证管柱不发生破坏，具有足够强度，保证安全性；
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