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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。
- It is a difficult work to calculate the deflection of filament wound tapered tube at bending because of changing layer thickness in every cross section. 纤维缠绕的锥形管,由于各截面的纤维层厚在不断变化,弯曲变形计算比较困难。
- This tester is used for determining the transverse compression strength of paper tube, bobbin, paper can, and composite can... etc. it can also be used for testing taper tube. 纸管抗压试验机，电动纸管抗压试验机是专门测试纸管,胶管,纸罐之横压强度,或一般小型包装容器之抗压能力。
- 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。
- Method;The posterior wall of bladder neck were cut and sutured into taper tube, which were then pulled out to perineum and sutured to urethral meatus to replace the urethra. 方法:自膀胱颈后唇向上,取梯字形壁瓣,形成锥状管,经膀胱颈口,自阴道前壁外拉至外阴部,在原尿道外口处固定,替代尿道。
- 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。
- tapered tube and disc type flow meter 锥形管圆盘式浮子流量计
- tubing string with down-hole tools 井下管柱
- 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。
- DEFLECTION CALCULATION OF FILAMENT WOUND TAPERED TUBE 纤维缠绕复合材料锥管的挠曲变形计算方法
- Design of automatic vertical pipe rack for oilfield tubing string 油管柱立式自动排架设计
- The organization tapered off in about a year. 这个组织在一年左右的时间里逐步停止了活动。
- The economic boom tapered off in the 1970s. 经济繁荣在七十年代慢慢消失了。
- 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
- Oil feeds into the machine through this tubing. 油经过这个管子流入机器。
- 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。
