查询词典 pump rod

Combining with practical application, the factors that influence sucker rod pump performance are studied in this dissertation.

本文结合工程实际，对影响有杆抽油泵性能的因素进行了比较深入的研究。

The performance of sucker rod pump has close relation to economic benefit of oil field.

抽油泵作为有杆泵抽油系统中的核心设备，其性能的好坏直接关系到油田经济效益的高低。

Discharge coefficient is the important factor of influencing sucker rod pump performance.

本文对有杆抽油泵的排量系数进行了详细的计算，系统地分析了影响排量系数的主要因素。

Some basic theories and studies of rod pump test equipment such as displacement sample curves are introduced.

分析了几种现有有杆泵动态测试装置的总体方案，以及有杆泵动态测试装置伺服机系统目前已有研究基础及成果，给出了伺服机系统的样本曲线。

The following contents are included:The classification, working principle and constitution of sucker rod pump are analyzed.

主要内容如下：分析介绍了几种常见抽油泵的工作原理、构造、适用范围及分类。

With the model, torque change in both the pump and pumping rod along the wellbore could be obtained.

利用该模型可获得井筒中任意部位及螺杆泵处抽油杆扭矩的变化情况。

The optimal design model of downhole pump depth and rod string assemblage is set up.

5建立下泵深度和抽油杆柱组合优化设计模型。

It is indicated that employing the new oil pumping unit can raise the efficiency of the sucker rod pump under the surface.

分析与计算结果表明，新型液压抽油机的效率较常规游梁式抽油机的效率有较小幅度的提高，并指出了这种抽油机对提高井下效率的可能性。

Inflow performance of oil well, as a major external factor of influencing sucker rod pump performance, is studied.

油井流入动态是影响抽油泵性能的外部重要因素。

But the screw rod pump production technology,like other lifting method,has its good and bad points and is suitable to the condition.

但是螺杆泵采油技术也和其它举升方法一样，都有其优缺点和适用条件。

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。