油管

The wellhead part mainly includes the controlling device, the pneumatic valve, the blowout control box, the damping spring and the plunger catcher, and the downhole part consist of the combination tubing, the buffer spring, the tubing spider and the plunger which reciprocated between the tubing.

井口部分主要包括控制器、气动阀、防喷盒、减震弹簧、柱塞捕捉器；井下部分主要包括大小油管、缓冲弹簧、油管卡定器，以及在大小油管间往复运动的柱塞。

By making use of multi-points backward pressure of one dry gas well, this paper introduces how to confirm dynamic friction coefficient of downhole tubing at the exact moment through stable testing material, gives the productivity and the corresponding bottom hole pressure by using productivity equation, calculates wellhead pressure in combination with dynamic friction coefficient of tubing, establishes the correct wellhead outflow performance equation for this well, draws out wellhead outflow performance curve and discusses how wellhead outflow performance equation or wellhead outflow performance curve changes with the decrease of formation pressure or the change of wellhead outflow performance curve.

借助1口干气井的多点回压法试井资料，介绍了如何利用气井稳定试井资料，确定该气井此时此刻井下油管动态摩阻系数；利用产能方程给出产量和对应的井底压力，结合油管动态摩阻系数计算井口压力，建立该井准确的井口流出动态方程并编绘井口流出动态曲线；讨论了随着地层压力递减和井下油管动态摩阻系数变化规律，井口流出动态方程或井口流出动态曲线的变化规律。

Use Specially fish the oil-pipe noumenon and oil-pipe connecting hoop.

可退式油管、油管接箍打捞筒一、用途专门打捞油管本体及油管接箍。

The research of constituent of skin of the contrast that the article cleans a method through to a few kinds commonly used vitta and vitta knot dirty, rust, it is difficult to decided clean vitta clean plan, undertook introductory to washing flow, principle and filter cloth cleaning device accordingly, it is difficult to was solved clean vitta clean a problem, improved working condition of the worker, ensured person is safe, improved productivity, managing the sources of energy.

文章通过对几种常用油管清洗方法的对比以及油管结垢、锈皮组分的探究，确定了难清洗油管的清洗方案，并对相应的清洗流程、原理以及清洗装置进行了介绍，解决了难清洗油管的清洗新问题，改善了工人的工作条件，确保了人身平安，提高了生产率，节约了能源。

As Coiled Tubing, there are 30 sets of Coiled Tubing Working trucks in China and 30 million yuan ' s (200 thousand meters) requirement. It is broadly used in Tuha, Sichuan, Daqing and Shengli and so on oilfields. Freet ' s Coiled Tubing Working Truck worked in Hekou, Shengli, Zhuangxi, Chunliang and so on oil extraction fields to take the wax-cleaning, sand-washing work and achieved great effect. There are 1,050 sets of working trucks abroad and annual requirement is 1.5 to 2 billion yuan (8 million meters).

对于连续油管，目前国内有30台连续油管作业车，每年需求在3000万元左右（20万米），广泛应用于吐哈、四川、辽河、大庆、胜利等油田，我公司的连续油管作业车先后在胜利油田的河口、胜利、桩西、纯梁等采油厂进行清蜡、冲砂等作业，效果显著；国外有1050台作业车，每年需求量在15-20亿元左右（800万米）。

It points out the necessity of tubing anchor in pumping well s,especially in deep wells.

定量分析了抽油机井油管自由悬挂可能造成的危害：降低泵效；油管柱振动加速了油管的疲劳破坏；油管屈曲造成套管、油管、抽油杆柱之间的多重磨损。

A hydraulic self-sealed swab bing wellhead assembly with anticollision crown;2. An economical and safe casing swab bing tool;3. If sand is not sunk, by operation of swab to build a different pressure between up and down of sunk sand to form a de- terminate pressure stir makes the sand to sink to reach the objective of unstuck.

冲管解卡工艺是将小直径的管柱下入到油管中，在油管中建立液流的循环通道，利用该通道把砂子带到地面，一直冲洗到人工井底，给油管外的砂子下沉留有一定的口袋；若砂子不下沉，可以通过抽汲在沉砂上下建立压差，形成一定的压力激动，使砂子下沉，达到油管解卡的目的。

Note: All equipment including Tubing, Crossovers, Tubing Hangers should be dimensionally inspected and subassemblies pressure tested prior to running in the well.

注：在将油管下入井中之前，应当对所有设备，包括油管、变扣接头、油管挂，进行尺寸检查，并对工具总成进行试压。

In order to solve the phenomenon of the side wear and corrosion between the rod and the tube during the sucker rod pump's working process,wearable and antisepsis coatings was coated in oil tube ,and friction and wear properties between many types of oil tube and rod materials pairs were studied.

为了治理有杆泵井的管杆偏磨问题，在油管上喷涂了一层耐磨防腐涂层，并对比研究了抽油杆和油田常用的油管摩擦副及喷涂耐磨涂层后的油管摩擦副的摩擦磨损性能。

The difference is that the relay-like plunger is composed by two separated plungers in different size and reciprocate in corresponding tube in the process of lifting, and the two separated plungers automatically dock with each other when the relay-like plunger is in the process of up stroke and separate in the process of down stroke and constitute the process of the relay plunger lifting.

所不同的是，组合油管接力式柱塞举升系统的卡定器下到下部小油管中，柱塞由大、小两个分体式柱塞组成：小柱塞在下部小油管内运动并实现在小油管中的举升，大柱塞在上部大油管内运动，上行程时小柱塞可与大柱塞自动对接并完成举升的接力，下行程时小柱塞可与大柱塞自动脱离。

However, as the name（read－only memory）implies, CD disks cannot be written onorchanged in any way.

然而，正如其名字所指出的那样，CD盘不能写，也不能用任何方式改变其内容。

Galvanizes steel pallet is mainly export which suits standard packing of European Union, the North America. galvanizes steel pallet is suitable to heavy rack. Pallet surface can design plate type, corrugated and the gap form, satisfies the different requirements.

镀锌钢托盘多用于出口，替代木托盘，免薰蒸，符合欧盟、北美各国对出口货物包装材料的法令要求；喷涂钢托盘适用于重载上货架之用，托盘表面根据需要制作成平板状、波纹状及间隔形式，满足不同的使用要求。