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- 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。
- The contraction force will be produced in unsetting of hydraulic packer by lifting tubing string because of effect pressure and pumping and so on. 采用上提管柱解封的液压式封隔器管柱，由于压力效应及泵抽等因素影响，将产生一定的收缩力。
- 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 causes of abrasion of sucker rod string and tubing string aie analyzed, and it is indicated that the effective measure for preventing the abrasion is using sucker rod centralizers. 分析了油管和抽油杆产生偏磨的原因，指出防止油管和抽油杆偏磨的有效措施是采用抽油杆扶正器。
- 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。
- In the finite element model the gap elements are arranged at the ends of girder element of the tube string to simulate the contact and friction among rod, tube and casing string. 通过构建双层接触间隙元，建立有限元分析模型，将油管柱、套管柱和抽油杆柱之间作为一个耦合的整体进行有限元力学分析。
- The force state of per foration tube string for testing of oil is analyzed with the finite clearance e lement method, and the field applied examples prove its reliability and veracit y. 用此方法对试油测试射孔管柱的受力状态进行了分析,并通过现场应用实例证明了此方法的可靠性和准确性。
- tubing string with down-hole tools 井下管柱
- I need a piece of string to tie this parcel up. 我需要一根细绳把这包裹扎起来。
- The author pointed out that tubing anchor can not only control the tubing flex , but also improves force status , prolong the using life of tubing strings . 指出油管锚(油管张力锚除外)不仅可以控制管柱的伸缩,而且可以改善管柱的受力状况,延长油管的使用寿命。
- Design of automatic vertical pipe rack for oilfield tubing string 油管柱立式自动排架设计
- Force and vibration analysis of tubing string in rod-pumped wells 杆式抽油井油管受力和振动分析
- He tied a string on his finger to jog his memory. 他把一条细绳系在指头上，以唤起记忆。
- Oil feeds into the machine through this tubing. 油经过这个管子流入机器。
- The child was trailing a toy car on a string. 小孩用绳子拖着一辆玩具车。
- It was the latest in a string of hotel disasters. 那是一系列的饭店事故中最新发生的一起。
- She's had us all on a string for too long. 我们大家受她摆布已经很长时间了。
- Lowering sucker rods and tubings with promiscuous grades may cause breaking or parting of rod or tubing strings. 把级别混淆的抽油杆管下入井下,将导致杆管断裂、脱落等事故。
- Don't cut the string, untie the knots. 别剪断绳子，把结解开。
- Harp not for ever on the same string. 勿老调重谈。
