pump rod

In the stage of cold production, two lifting methods as screw pipe pump and rod pump can be applied, with assisting viscosity reducing measures which include adding viscosity reducing agent through the hollow rod or the production casing annular and electrical rod heating.

在冷采阶段可采用螺杆泵和有杆泵2种举升方式，均需辅以降黏措施，降黏方式有空心杆掺入降黏剂、油套环空掺降黏剂和电杆伴热3种。

Combining with practical application, the factors that influence 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 feature of the progressive cavity pump mobile intermittent recovery technique is using a tractor as power unit, adopting a double universal coupling transmitting the power to a drive head to make the rod string rotate and thereby drive the progressive cavity pump for pumping.

新开发的螺杆泵机动间歇采油技术及设备的主要特征是用拖拉机做动力源，用双万向联轴器把动力传递给驱动头，由驱动头带动抽油杆柱旋转，进而驱动螺杆泵旋转抽油。

Active water or light oil is sent downhole through hollow rod to reduce oil flow resistance, thus producing heavy oil from deep formation through screw pump.

利用空心杆向井筒内掺入活性水或稀油，降低油流阻力，实现应用螺杆泵开采深层稠油。

For straight well screw pump rod, fix a centralizer every three rod will meet the demand.

对直井螺杆泵抽油杆柱，每3根杆柱安放一扶正器即可达到杆体无接触的要求。

Pump-jack is a mechanical device applied to exploit the oil and pumps oil through sucker rod.

抽油机是开采石油的一种机械设备，通过抽油杆的抽汲作用把油抽上来。

The following contents are included: The classification, working principle and constitution of 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.

The level of screw pump well being managed is more improved and that sucker rod break and collar thread off is delayed effectively, the exempt workover period is prolonged.

该技术的应用进一步提高了螺杆泵井的管理水平，有效的减缓了抽油杆的频繁断、脱问题，延长了检泵周期。

Research on the dynamics model of surface-driven single progressing cavity pump rod and centralizer design

螺杆泵采油井扶正器位置设计动力学研究

At the same time, there exist a lot of problems in the rod-pumped wells of polymer flooding compared with water flooding, such as greater ergogram, lower pumping efficiency, eccentric wear of the sucker rod, shorter period of pump checking, etc.

与此同时，聚驱抽油机井与水驱抽油机井相比有诸如示功图肥大、泵效下降、抽油杆偏磨、检泵周期缩短等问题。

In heavy oil production, the friction damping force that the pump rod may stand during its movement in liquid may be as big as tens of kilo-newtons.

在稠油开采中，抽油杆在液体中运动时，所受到的摩擦阻尼力很大，有时高达几十千牛。

Test and application of cable-in-rod through pump heating technique

电杆越泵加热技术试验及应用