API Oilwell Sucker Rod Roller Centralizer, Wheels Centraliser

1) Standard: API 11B

2) API and ISO certified

3) Specification:  16mm, 19mm, 22mm, 25mm

4) Type:  Coupling Rod Centralizer

5) Description

Sucker Rod Guide, or Sucker Rod Centralizer, used in pumping well, is a tool which can set upright the sucker rod, and protect the sucker rod from wiping with tubing pipe.

6) Application

By centralizing the rod, the guide acts as a wear resistant bushing, preventing the rod from wearing through the production tubing. Rod and production tubing contact is increased in deviated wells and horizontally drilled unconventional shale wells. Rod guides, used in wells with server deviation or with pumps set beyond the kickoff point in horizontally drilled wells, increase mean time between failure, decrease artificial lift cost, and increase well profitability.

7) Structure

It is composed of coulping, centralizer sleeve and sub. 

8) How to work

It connect with sucker rod, the centralizer casing OD is larger than the sucker rod coupling OD in order to centralizer rod. Centralizer casing has high strength wear resistant, so when contact with oil tube, makes the centralizer body wearing and reduces oil tube wearing so as to anti-wear (centralizer casing temperature resistant: 260°C, material: self-lubricating Ni-p plating material). The steel surface adopt Ni-p plating (the anti-corrosion technology) makes the centralizer has the ability of anti-wear and anti-corrosion. And it also suitable for the worse corrosion well condition.

9) Specification