The Stainless Steel Screen Pipe is mainly used to the water and ollreservation layer without much sand. lt’ s function is prevent rock bits dripping intothe wel bore. The working principle is alowing the certain size and coming through the surface with crude oil but keeping the biggelsize sand stopped outside to form sand bridge, and thereby achievement the anti-sand purpose. This type of produce is commonlyused to sand rock and catbonate reservoir and especially useable for horizontal wells.