Centralizing Sucker Rod Scraper

The centralizing sucker rod scraper, which is a new patent technology, can scrape wax mechanically and prevent sucker rod’s eccentric wearing, has been manufactured and tested successfully by our company. It’s service lifetime is more than 15 years.Therefore, chemical thermical washing wax cleaning and chemical additive wax cleaning methods in rod pumped well will become a history. The centralizing sucker rod scraper is composed of paraffin cutters and a pair of retainers. Paraffin cutter is a elastic split cylinder. Its outer diameter is 59 millimeter which can be run into inner diameter 58.5 mm tubing. Its inner diameter is 56mm. Its length is 110mm and its weight is 0.25 kilogram. The retainers are fixed on the both sides of paraffin cutter. The sizes of the centralizing sucker rod scraper are 16mm, 19mm, 22mm, 25mm, which can be run into the ID 62mm tubing. It can be used to scrape wax and prevent sucker rod’s eccentric wearing in all kinds of rod pumped well, such as vertical well, deviated well (deflecting well) and horizontal well. It is nothing to do with crude oil properties.