The main purpose of hydro cleaner is to remove cement, sand, residual bullets after perforation,scratches,paraffin,burrs   and   other    objects   remaining   on   the    inner   wall of casing,keep  the  inner  wall  of  casing  clean  so  that  it  can  run  in  various  downhole tools.Normally  used  in  horizontal  wells  and  extended  reach  well.Its  double   spiral blades  structure  can effectively  remove  debris  on  inner  wall,and  at  the  same  time,the hardfacing material can effectively improve service life of drill pipe.