KWCS Model Casing Scraper
 
 
1. Overview
KWCS casing scraper is an internal tool used for removing the obstructions or foreign material from inside the walls of casing, such as residual cement, clay lump, and the burr, scales coming from casing rolling, the perforating charge which is set on the wall during sand preventing perforating inside, as well as rust, scale, hard paraffin on the production casings.
 
Structure of Scraper Part
KWCS Scraper is made up of mandrel, centering sleeve, upper support seat, hoop scraper, semi-annular plate, lower support seat, fixing sleeve, lower scraper, wearing ring, adjusting ring, spline body, gland nut, lower joint as well as other components. The hoop scraper and lower scraper can be stretched out and drew back to removing the dirt layer-by-layer according to the thickness of obstructions on the inner wall of casing; Meantime, the scraper and mandrel can mutually rotate. Mandrel and spline body are connected by spline pair connection, it can achieve the torque transmission, transfer the upper torque to the lower tools.