Sucker Rod Centering and Anti-Friction Device

Product Introduction

The friction between the sucker rod and the oil pipe, and the friction between the sucker rod coupling and the oil pipe will cause the rod to break or

Tripping causes the oil well to stop production, causing pipe string leakage and oil pipe scrapping, causing great economic losses to the production of the oil field lose. Our company combines domestic and foreign advanced technology and combines the characteristics of eccentric wear of pumping wells to adopt improved pumping rod ， the self-lubricating ability of the coupling and the two anti-wear processes of increasing the friction contact area have led to the development of a specially designed sucker rod straightening and anti-wear device for heavy eccentric wear oil wells. That is to say, it protects the device body from wear and also greatly reduces the oil pipe is worn and its service life is more than ten times that of ordinary centralizers.

Structure and Working Principle

The device consists of a triangular sector-shaped self-lubricating alloy spray-coated centralizer, an extended coupling of the sucker rod and a fixed ring. The triangular sector-shaped centralizing body is placed on the extended coupling of the sucker rod and fixed through a fixed ring; the centralizing body is placed on the extended coupling of the sucking rod and can slide freely. The innovatively designed triangular shape enables the centralizing body to rotate automatically, ensuring The wear-resistant surface of the centralizing body matches the inner wall of the oil pipe.

Main Feature:

1. It has significant self-protection effect: The unique self-lubricating additive of the centralizing sleeve reduces the friction coefficient between the coupling and the oil pipe, plays a self-lubricating effect, and protects and slows down the wear of the oil pipe surface.
2. It has a protective effect on the eccentric wear of oil pipes and sucker rods: the centralizing sleeve adopts a special eccentric structural design, which overcomes the short eccentric wear period and damage to the oil pipe caused by the point and line contact of the anti-wear sucker rod coupling with the inner wall of the oil pipe. The disadvantage is that the eccentric wear of the pipe rod is greatly reduced.

The Main Technical Parameters